(Link to video)
Update: Re-recorded 8-4 with an improvement of one more coin found by andrewg, along with 1-3 and 1-4 and a few minor adjustments. (Watch or download the encode for the previous version if you like.)
One day Mario got bored defeating the old lame Bowser and rescuing the same princess so many times, so he started challenging himself by wondering: how many coins could be gotten in one life only? In the end, Mario and the princess lived richly and happily ever after. Unfortunately, in the end, the princess took away all the money he had collected for 26 minutes and 10 seconds, and was immediately kidnapped again.
Unlike other SMB TASes that basically run through the whole stages, here you can see Mario slowing down for coins very often, which presents more actions. If you're merely thinking of something like a fuller-scaled warpless run with Mario getting all the coins he can see, you'd be surprised, for it's actually NOT warpless, and Mario has skipped a few coins on his way according to the strategy.

Goals

  • To get as many coins as possible without using death (because if deaths were allowed, the number of coins would be infinite and therefore meaningless)
    • To complete the game within the fastest time
      • To be as entertaining as possible

Questions

1. How many coins are there in SMB?
Counting each coin bricks as 16 coins (the best you can get, although not possible in every condition), and searching through every routes found on the map, we may find 1225 coins in total.
2. How many have you got?
We've managed to get 1431 coins, in one life only.
3. How is that possible?
We've created our own routes using loops.

New tricks

We've applied the most advanced SMB techniques to this run, including most of the glitches shown in previous SMB TASes. Here are something more:

Supernatural loops

We all know in SMB there are natural loops inside mazes like 4-4, 7-4 and 8-4, but we've also found 2 places where you can travel back to where you've been before through pipes as many times as you want, one in 4-2, and the other in 6-2. The principle of it is similar to the Wrong Warp glitch in 4-2 of the any% run, a pipe will lead you to the previous exit if the new entry point hasn't been loaded from the screen. It's likely that the designers who placed those entry points weren't aware that we can manipulate Mario's screen X position to the right side of the screen to alter the exits of some pipes, leaving a few loopholes we can use.
In 4-2, the Warp Zone information won't be loaded until the point where the screen stops scrolling, therefore, as long as the Warp Zone's text isn't shown, Mario can return to his starting point through any of those 3 empty pipes. The quickest way of moving Mario to the right side of the screen here is to continually bump into the stairs, and the previous fall to get 2 coins underneath also matters a lot as it saves a bump and about 4 frames each time. The strategy in the Warp Zone stage brings us 19 coins every 23 in-game seconds, which far surpasses the number of coins from the rest of 4-2, 4-3, 4-4, and the entire world 5 all together. And because of its high performance price ratio, it's totally worthy for Mario to skip some of the coins underground in exchange of more loops from the Coin Heaven.
In 6-2, manipulating screen X position for the loop is pretty extreme and almost impossible. We have to make the best of everything we can use to push Mario further to the right: the first 3 pipes, the left and right side of the bricks, the edge and the corner of the entrance pipe, everything. Because there are only 26 coins within a loop of 36 in-game seconds, which are much less compared to the Coin Heaven's route or the underwater route plus another secret coin room's route, we choose to focus on Coin Heaven and only loop for 8 times, which is the route with the most coins according to our calculation.
In 8-4, normally we can only get 19 coins from the maze, but with the improvement from andrewg, 1 in-game second can be saved from each time by entering a glitched pipe, bringing us one extra coin. However, performing a wall jump then the pipe glitch is about 2.2 seconds slower than running ahead in real time, so it's best to do as few times of the pipe glitch as possible to ensure "the maximum coins within the fastest time". Getting hit to save a time doing the pipe glitch will be one of our future improvements.

The 21 frame rule of the coin brick

You can get a minimum of 2 coins and a maximum of 16 coins from a coin brick before it turns to a used block, as the trigger is based on the timer starting from the first hit instead of the number of coins. Due to the 21 frame rule from its internal timer, only in one third of the time in each 21-frame period is Mario able to hit 16 coins from a coin brick, so in this run, sometimes it's important to delay for certain frames before hitting the coin brick to get the first hit at the right time.
There are 2 coin bricks in 1-2 that are higher than the rest. To get the maximum number of coins from those two, Mario has to keep hitting them with the maximum jumping speed by hitting the edge of a solid object or the screen at the running speed first, jump the instance he touches the floor, and release and never push direction keys until the last jump. Even so, Mario's only able to get no more than 12 coins from each of them due to their height.

Keep moving upward after breaking a brick

It can sometimes be very significant and useful when hitting the corner of a brick, like in the secret coin room in 3-1.

Fireballs hitting invisible objects

Probably due to the ghost of the penultimate Goomba in 1-1, an invisible object coming out of thin air right before the flagpole can be hit multiple times using fireballs. The principle of this odd glitch still needs further studies.

Shooting a new loaded enemy from the left side of the screen

One of the most unusual glitches I've met in SMB. It only happened once in 8-4 right after getting the 1425th coin, when Mario shot the exact fireball on the exact position at the exact time, so rare that I haven't been able to reproduce it ever since. The fireball indeed hits the Piranha plant the moment it's loaded (but not shown on the screen yet) from a strange universe, but up until today I haven't figured out how it works, or whether it can be applied to other spots with other types of enemies. If it can, this glitch could be quite useful in SMB TASes once we learn how to reproduce it.
And some minor glitches mentioned below, such as going through the wall on a moving lift (in 6-2); axe not disappearing (in 1-4); hitting the star inside the wall (in 1-2); fireballs and enemies disappearing in the maze (in 8-4); completing the stage on 000 (in 4-2, 6-2, 8-4, technically not a glitch though), etc.

Spoiler Alert! (Stage by stage comments)

LevelNumber of coins gottenComments & highlights
1-126Grabbing the mushroom and the flower. The upper route is chosen because it has 3 more coins than the underground route. To perform kicking a shell and defeating all the Goombas, Mario has to shoot one of the Goombas previously, otherwise it will cause unavoidable lag frames. "Fireballs hitting invisible objects" is demonstrated near the flagpole.
1-278Turning around twice to keep the jumping speed for getting 12 coins from each coin bricks. During his way collecting coins, Mario grabs an additional star in the wall just for fun, as it happens not to waste any time thanks to the 21 frame rule. The ending time is manipulated in order to get 1 firework.
1-323Jumping through a lift, and entering the floor using a Koopa Troopa.
1-46At the end of the stage, the "axe not disappearing" glitch is demonstrated. Usually it costs time doing so, but luckily not here because of the 21 frame rule.
2-176During the time Mario kicks a shell again, don't miss the moment where a Goomba is killed twice. After that, Mario manipulates screen X position to get to the Coin Heaven through the pipe instead of the vine, which saves about 4.2 seconds.
2-228Playing with the music at the start, although CuteQt himself admits that the result hasn't matched his expectation. Going through the wall twice to get the 6 coins inside the hole faster.
2-335100% killing, and the Cheep-cheep glitch for a special ending (saving 84 frames).
2-46Jumping through the block to get the 6 coins faster.
3-183The solution under the secret coin room is really impressive. Shooting fireballs backwards after transporting from the vine. Using the shell glitch like in HappyLee's warpless run to save time.
3-223Playing with the music at the beginning in a really long distance, with a few enemies left alive to produce such effect. Kicking the shell over and over during the coin brick for fun.
3-322"Ice skating" at the beginning, and entering the floor with the help of the lift at the end.
3-45The most ordinary stage. Mario doesn't even have to slow down.
4-162Mario has to make his way to the right side of the screen in order to get 3 additional coins before entering the pipe to the secret coin room. The Lakitu is shot finally, but according to CuteQt, he has no choice but to let some Spinies go.
4-2330Mario skips 1 coin brick, 2 ? blocks, and 1 hidden coin block on his way, only to get more from the loop. The Warp Zone stage is played 16 times in total, and then Mario warps to 6-1 right at the time of 0, just like the plan.
6-145Killing Spinies in various ways.
6-2304Playing with a shell while hitting the coin brick at the beginning. Mario returns to the secret coin room 8 times using the glitchy way, performing walljumps and all sorts of wall-breaking techniques, and also going through a solid cloud with the lift in the following Coin Heaven. The ending time is precisely manipulated to 0 making the whole thing more exciting.
6-324"Ice skating" at the beginning, using the Bullet Bill to get some coins faster, same as HappyLee's warpless run. With few enemies around, Mario shoots some lifts for fun.
6-46Very good luck from Bowser, and no lag makes performing walljump on the axe while shooting Bowser more comfortable.
7-139The Bullet Bill at the very start successfully cooperates with the music, but things didn't work out well when it comes to the final Bullet Bill, as no matter how hard we tried, we simply couldn't get the perfect Bullet Bill like this as we planned, so to not lose time, we have to take the normal flagpole glitch ending instead.
7-228Going through the wall twice just like in 2-2, only more Cheep-cheeps are killed inside the wall.
7-335100% killing, and by coincidence, 2 Cheep-cheeps jumping out of the water makes the final Cheep-cheep glitch look more stunning.
7-40The only level in this run without a single coin. However, Mario runs like crazy through the boring maze. Bowser is killed so instantly even before he could feel any pain.
8-165A performance of fireballs, making this stage a perfect shooting range. The second coin brick takes quite more skills than it seems.
8-246Manipulating luck to get the ideal Bullet Bills that won't cost time during the coin brick, and a perfect ending using Bullet Bill glitch.
8-316Since there are plenty time to waste to avoid 3 fireworks, Mario ice skates at the beginning, and kicks a shell towards the Hammer Bros.
8-420Mario can get only 1 coin from the loop at a time, so he tries to change the way of killing enemies each time to make the long road less boring. A Piranha plant just loaded is mysteriously shot from the left side of the screen after getting the 1425th coin (see "new tricks" above). The final Bowser is killed, because his position is just perfect, which basically labels "shoot me" on his face.
Total1431-

CuteQt's comments (translated)

Well, it's my first time making such an accurate TAS, and I've learnt so much through practice.
Tehh_083 mainly made through the first 3 worlds for the first version, which was the hardest time, because there weren't any comparison videos or anything to rely on except ourselves. And then Tehh_083 has disappeared ever since we finished remaking world 2.
I took part in the project since he finished 4-1 of his first version, and I remade the whole run once again from the beginning, for the latest discovery of getting 12 coins from each two coin bricks in 1-2 along with some minor improvements.
Later on, I finished some ordinary levels and did some simple calculation in 4-2 and 6-2. HappyLee offered some crucial assistance like the shortcut in 2-1, getting 3 more coins in 4-1, and the loop in 4-2 very early. I'd say he's not slow on efficiency, while the quality of his work is astonishing. Running like crazy while shooing fireballs: insane; manipulating screen X position in 4-2 and Bullet Bills in 8-2: incredible; the entertainment in 1-1 and 1-2 after his improvements: totally awesome.
By the way, thanks to KFCMario for putting forward the 21 frame rule of the coin brick first, his warped version of the maximum coins TAS, his previous idea of getting one extra coin from 4-1, and some early assistance.

HappyLee's comments

At first I thought that a goal like "maximum coins" seemed greedy and pointless, but then CuteQt and Tehh_083 have proved me wrong with their excellent WIPs. Since I discovered the crazy loops in 4-2 and 6-2, I've become really fond of this project.
I officially joined the project since world 6, although previously I already had my inputs in the hardest parts of 2-1 and 4-2, and helped to come up with the strategy for 4-1. In this run, I mainly finished 6-2, 6-4's boss fight, 7-3, 7-4, 8-2 (after the springboard), 8-3 and 8-4, and after that I also redid 1-1, 1-2, 2-1's Coin Heaven for the entertainment, and made a few adjustments in 2-2, 6-3 and 8-1.
Tehh_083 did a splendid job on making and improving the first two worlds, but ever since Tehh_083 mysteriously disappeared after world 2, the pressure and the difficulty have doubled on CuteQt. This run couldn't be done without CuteQt's persistence through 3 years, yet he still argues with me seriously that his name shouldn't be placed at the top of the list. His pursuit of perfection, and his talent of mastering fireballs and playing around with enemies has really blown my mind. Together, we worked day and night (day for him, night for me), and completed world 6 to 8 within 4 weeks.
We're both pretty satisfied with this run, even though it might not be perfect, for we know that there's always room for future improvements. Thanks to people from our forum for providing the idea of making an SMB "maximum coins" TAS, and I hope you enjoy our work as well.
Edit: Special thanks to andrewg for bringing us the pipe glitch in 8-4 of which we never thought before, making 8-4 a lot crazier. Just when I was about to submit the improvement we've been working on for days, I found a more complicated strategy in 8-4 that involves getting hurt, which would save about 1.5 second. Unfortunately I'm exhausted improving 8-4 these days, and probably not going to redo the whole 8-4 again for a while, so I guess I'll leave it to our future improvements.

Suggested screenshot

Guess where all the coins have gone?

HappyLee: Setting this to "cancelled" until I'm back with an improvement of 1 extra coin from 8-4 thanks to andrewg. Can't leave one coin behind!
Noxxa: Replacing the input file with a new version which is 1210 frames slower, but does collect one additional coin in 8-4.
Noxxa: Judging.
Noxxa: This is a very unique and creative run. The goal of aiming for as many coins as possible (without death abuse) ends up resulting in a lot of interesting strategies, both on a macro and a micro scale. The run is full of creative and sometimes counter-intuitive strategies like skipping a world to get more coins, looping through the 4-2 warp zone area (and other places) just to very tightly clear the stage with the timer at 0, and smaller tricks or strategies like the ways coin rooms are efficiently cleared, how with precise timing it is ensured to get the most out of each coin block, and many more things. All these strategies make the run a real pleasure to watch. The only downside of the run is that the three loops do get repetitive after some time.
Accepting to Moons as a new category.
Spikestuff: That's a lot of coins.

TASVideoAgent
They/Them
Moderator
Joined: 8/3/2004
Posts: 14772
Location: 127.0.0.1
Editor, Expert player (2310)
Joined: 5/15/2007
Posts: 3854
Location: Germany
Editor, Skilled player (1401)
Joined: 3/31/2010
Posts: 2081
This was an interesting TAS. Normally those wacky alternate goal choices for Super Mario Bros. tend to be very poor, like Minimum Score, or Beat the Game Twice or what have you, but this TAS stood out through its excellent optimization. The run displays a high degree of control over Mario and some really creative solutions for getting all coins in a screen quickly. The infinite loops were nifty at first, but began to drag on after a while. Voting yes for entertainment. Just that sped up Starman music. Oh god, why. (Also, I would be really curious to see the same run on Super Mario Bros: The Lost Levels, since the levels there are even more mazelike)
Active player, Editor (296)
Joined: 3/8/2004
Posts: 7468
Location: Arzareth
Yes vote! This is the kind of a video that I would have gleefully accepted on the early years of NesVideos, and it still makes me happy.* It has a definite goal, and it is entertaining to watch, and it manages to surprise the audience more than once. And this is what the Super Mario franchise is really about: making tons of money. I'd be happy to say this is how SMB1 was meant to be played, if it didn't raise some weird questions about the exact techniques used in this video. :-) But Mario certainly seems to be at his happiest in this video! You even got to heard the hurryup-version of the coin heaven theme. A rare treat. *) Until someone beats it by 42 frames.
Joined: 3/9/2009
Posts: 530
scrimpeh wrote:
(Also, I would be really curious to see the same run on Super Mario Bros: The Lost Levels, since the levels there are even more mazelike)
It already exists. http://tasvideos.org/3912S.html
Senior Moderator
Joined: 8/4/2005
Posts: 5769
Location: Away
Bisqwit wrote:
And this is what the Super Mario franchise is really about: making tons of money.
I chuckled.
Warp wrote:
Edit: I think I understand now: It's my avatar, isn't it? It makes me look angry.
Soig
He/Him
Skilled player (1458)
Joined: 12/4/2010
Posts: 252
囧 o(╯□╰)o I don't know what should I say…
Banned User
Joined: 3/10/2004
Posts: 7698
Location: Finland
Why is the warp zone played exactly 16 times?
Active player, Editor (296)
Joined: 3/8/2004
Posts: 7468
Location: Arzareth
Warp wrote:
Why is the warp zone played exactly 16 times?
To collect the maximum number of coins before time runs out and Mario would die.
Noxxa
They/Them
Expert player, Moderator (4131)
Joined: 8/14/2009
Posts: 4083
Location: The Netherlands
Warp wrote:
Why is the warp zone played exactly 16 times?
Because they couldn't fit in a 17th before time runs out.
http://www.youtube.com/Noxxa <dwangoAC> This is a TAS (...). Not suitable for all audiences. May cause undesirable side-effects. May contain emulator abuse. Emulator may be abusive. This product contains glitches known to the state of California to cause egg defects. <Masterjun> I'm just a guy arranging bits in a sequence which could potentially amuse other people looking at these bits <adelikat> In Oregon Trail, I sacrificed my own family to save time. In Star trek, I killed helpless comrades in escape pods to save time. Here, I kill my allies to save time. I think I need help.
Senior Moderator
Joined: 8/4/2005
Posts: 5769
Location: Away
Atma wrote:
It was an interesting concept that was kind of entertaining and then you took a warp zone. meh.
I ended up in this camp as well. Most of the movie is a highly technical and stylistically varied playthrough that is probably as entertaining as an SMB run can get, showcasing basically every trick in the book. But the loops... Honestly, I think they have no place in this category. You take every coin there is anyway, no point repeating the same stuff over and over just to make some arbitrary counter (that resets at 100 anyway!) go up. If it is at all possible, I would kindly ask the authors to submit a version without loops instead. I don't believe anybody would miss them. Voting meh so far.
Warp wrote:
Edit: I think I understand now: It's my avatar, isn't it? It makes me look angry.
Editor, Player (44)
Joined: 7/11/2010
Posts: 1022
I haven't watched this run yet. From a technical routing point of view, I like the fact that the loops are included; it's interesting to see what route fulfils this category best. On the other hand, they do sound like they would make the run less interesting to watch. I'd be upset if they were removed because it makes the category more arbitrary. So I'll do what I normally do, and just get my TASing entertainment from the submission text (and not vote, both because that'd be against the intended purpose of the voting, and because I use the voting record as a method to remember which videos I've watched).
Banned User
Joined: 3/10/2004
Posts: 7698
Location: Finland
Mothrayas wrote:
Warp wrote:
Why is the warp zone played exactly 16 times?
Because they couldn't fit in a 17th before time runs out.
I forgot there's a timer. Oops.
Joined: 4/18/2015
Posts: 168
Location: Canada
That was awesome, and thank god you sped up the warp zones! It was really sweet to see a lot of tricks not normally used in SMB runs. This also had some really good routing! I give this a yes vote!
Player (74)
Joined: 8/26/2015
Posts: 70
I found it an interesting watch, but felt that much of what was happening was going over my head. I think a commentated encode (or subtitles) would be pretty useful for this category.
Joined: 6/5/2005
Posts: 139
moozooh wrote:
Atma wrote:
It was an interesting concept that was kind of entertaining and then you took a warp zone. meh.
I ended up in this camp as well. Most of the movie is a highly technical and stylistically varied playthrough that is probably as entertaining as an SMB run can get, showcasing basically every trick in the book. But the loops... Honestly, I think they have no place in this category. You take every coin there is anyway, no point repeating the same stuff over and over just to make some arbitrary counter (that resets at 100 anyway!) go up. If it is at all possible, I would kindly ask the authors to submit a version without loops instead. I don't believe anybody would miss them. Voting meh so far.
This, except I think I will abstain from voting for the time being until a change is made.
I like stuff...
Player (26)
Joined: 8/29/2011
Posts: 1206
Location: Amsterdam
That was surprisingly fun. Voting yes. That said, I would prefer the movie without those repeated loops. In my view, the same movie with no loops would be faster and more entertaining, and should be allowed to obsolete this one.
Skilled player (1703)
Joined: 9/17/2009
Posts: 4952
Location: ̶C̶a̶n̶a̶d̶a̶ "Kanatah"
3-1 underground was amazing 4-2 was meh, but the fact that this was possible was rather surprising. I honestly thought it would've led to another minus world or something. 6-2 was also quite clever. I almost wanted to vote meh, but that 000 time made it worth it. O_o 8-4 was funny. Sure the loop was shit, but the fact your team managed to trick this game to loop in 3 different ways was worth it. In fact this is one of the reasons why I think the loops should exists; it's showcasing 3 different ways the game messes up. That and the 000 time at 6-2. This TAS convinced me a run of all achievements AND maximum score for each stage for the GBC deluxe remake's challenge mode might actually be worth watching. Btw, not related, but: What? Edit: The zip file from the forum link is empty as well.
Spikestuff
They/Them
Editor, Expert player, Publisher (2254)
Joined: 10/12/2011
Posts: 6324
Location: The land down under.
jlun2 wrote:
What?
Duplicate submission occurred. Submission was deleted. Wrong submission deleted. ... Anyone download the submission file?
WebNations/Sabih wrote:
+fsvgm777 never censoring anything.
Disables Comments and Ratings for the YouTube account. These colours are pretty neato, and also these.
Experienced player (698)
Joined: 2/19/2006
Posts: 742
Location: Quincy, MA
This is really nice work. This is my theory on how to possibly get more coins: https://www.youtube.com/watch?v=IQW4HVavpAM Potentially I am correct? I haven't tested it to know for sure. It might end up being the same in the end really, but it's a thought I had. :) Forcing the floating pipe to wrong warp Mario send him back to where you would be it you just ran straight forward to loop this area. It appears you can get Mario to that pipe quicker using the above method. Though, it might not be enough to gain extra coins. As for the run itself: I found it interesting. Before I watched it I imagined that the 4-2 trick would be banned and assumed it would have to go through all levels. However, I was pleasantly surprised even though potentially it makes it less interesting to watch. The goal is most coins on one life, so the loops make sense. Without the loops, the run would no longer have the best route for the maximum coin count because obviously world 5 is skipped here. The reason it is skipped is because more coins could be obtained in 4-2 by looping the warp zone area than traversing world 5 (clever). By removing the loops, you'd have to change the main route, and so it's not an option unless the goal itself is changed: (1 life, Most coins, all stages, no loops) vs. (1 life, most coins)
Super Mario Bros. console speedrunner - Andrew Gardikis
Expert player (2448)
Joined: 12/23/2007
Posts: 822
andrewg wrote:
This is really nice work. This is my theory on how to possibly get more coins: https://www.youtube.com/watch?v=IQW4HVavpAM Potentially I am correct? I haven't tested it to know for sure. It might end up being the same in the end really, but it's a thought I had. :)
Oh my god! Bravo, Angrewg! We've never thought about that before. According to my test result, that glitch saves about 1 in-game second each time, therefore it could produce different result on coins, though I'm currently not 100% sure. Let me do more calculation first. Thanks. :)
Recent projects: SMB warpless TAS (2018), SMB warpless walkathon (2019), SMB something never done before (2019), Extra Mario Bros. (best ending) (2020).
Joined: 12/29/2007
Posts: 489
Quick question: In the 4-2 warp zone, how does falling to get the 2 coins at the bottom help save a bump? And is saving time its only purpose, or does the slowdown in fact get a higher coin/time ratio?
Expert player (2448)
Joined: 12/23/2007
Posts: 822
Zowayix wrote:
Quick question: In the 4-2 warp zone, how does falling to get the 2 coins at the bottom help save a bump? And is saving time its only purpose, or does the slowdown in fact get a higher coin/time ratio?
It saves time since we have to manipulate screen X position as well as getting those 2 coins anyway. You can see Mario has slightly moved to the right, as the fall is not like a regular fall. Mario touches the right side of the platform, which is equal to a bump, saving about 4 frames and getting 1 extra pixel of screen X position at the same time.
Recent projects: SMB warpless TAS (2018), SMB warpless walkathon (2019), SMB something never done before (2019), Extra Mario Bros. (best ending) (2020).
Noxxa
They/Them
Expert player, Moderator (4131)
Joined: 8/14/2009
Posts: 4083
Location: The Netherlands
jlun2 wrote:
Btw, not related, but: http://i.imgur.com/gRbqSLP.png
Fixed now.
http://www.youtube.com/Noxxa <dwangoAC> This is a TAS (...). Not suitable for all audiences. May cause undesirable side-effects. May contain emulator abuse. Emulator may be abusive. This product contains glitches known to the state of California to cause egg defects. <Masterjun> I'm just a guy arranging bits in a sequence which could potentially amuse other people looking at these bits <adelikat> In Oregon Trail, I sacrificed my own family to save time. In Star trek, I killed helpless comrades in escape pods to save time. Here, I kill my allies to save time. I think I need help.
Joined: 12/29/2007
Posts: 489
HappyLee wrote:
Zowayix wrote:
Quick question: In the 4-2 warp zone, how does falling to get the 2 coins at the bottom help save a bump? And is saving time its only purpose, or does the slowdown in fact get a higher coin/time ratio?
It saves time since we have to manipulate screen X position as well as getting those 2 coins anyway. You can see Mario has slightly moved to the right, as the fall is not like a regular fall. Mario touches the right side of the platform, which is equal to a bump, saving about 4 frames and getting 1 extra pixel of screen X position at the same time.
Thanks!