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This TAS is 133 frames faster than the published TAS. To be accurate, we changed the branch name to "all levels", because here's the true any% TAS of this game.
This project was started by Kzwbz in January, 2023. The last time save was found in November, 2023. We spent the rest of the time improving entertainment.

Improvements

StageTime save (frames)Comments
3-121By going through the wall with an invisible coin without slowing down.
4-121By vine glitch & special ending.
7-284By going into the top of the pipe, instead of the left side.
8-47Better enemy optimization.
Total133
Most of the improvements are found or first implemented in this TAS by HappyLee.

Kzwbz's comments

Hi, I'm Kzwbz. I don't really have a lot of ideas for this TAS, but one of the things that surprised me.
At the end of 2-2, Mario comes out of the side of the pipe instead of inside the pipe. My friend and I looked into this a little bit and came up with the general principle. First of all, Mario's entrance is controlled by the address $7FFE, which in most cases has a value of 0, but at the end of 2-2 it changes to 1. This causes Mario to come out of the pipe. We found that its value can be changed by manipulating enemies. One enemy with ID 1A is particularly important, because it will directly determine the value of $7FFE. This enemy is generated once per frame in each empty slot. So to not change the value of $7FFE, each enemy slot cannot be empty. So this is bothering us. But we've looked everywhere, and only 2-2 works. A very close level is 4-2, but because the exit pipe is so far away from the enemies, the enemies disappear before Mario gets there.
That's how it works, but we haven't looked into the deeper principles yet, so hopefully someone will follow up and figure this stuff out completely.

Suggested screenshot (frame #28309)



TASVideoAgent
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Asumeh
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Yes vote. 6-3 ending was pretty funny, but the very end (8-4) cracked me up; amazing job to you both! I'm curious though; if you're able to enter the top pipe in 7-2, can't you do the same for the other levels that start with the reverse L pipe? (assuming that's not possible and it was only for 7-2 in this case) 1-2, 2-2, 3-1, 8-2, 8-3
Also nitpick, but I believe you linked the wrong movie-to-beat... Here, think you meant: [5301] NES Super Mario Bros. Special: 35th Anniversary Edition by web2000, gaster319 & slither in 20:01.37
Yaaay, I'm an active player now! :D (as of 11/9/2024) Thanks to TASVideos for the support, they're awesome.
I'm Asumeh, semi-expert SMB1 TASer. :) Check out some of the TASes I don't submit/upload to TASVideos on my YouTube channel, if you'd like. In progress: - Extra Mario Bros. (redo) (with HappyLee and w7n) - I'm currently assisting with finding improvements before the boss. On hold; we're currently struggling to confirm that we have the fastest route. Some debugging may also help with finding glitch exits, but neither of us are experts in that field. - Record my older TASes (excluding any obsolete TASes) and upload to YouTube. - Pretty busy at the moment... Check out my other links here. (Mostly WIP hehe)
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Thanks Asumeh. Glad you like it.
Asumeh wrote:
I'm curious though; if you're able to enter the top pipe in 7-2, can't you do the same for the other levels that start with the reverse L pipe? (assuming that's not possible and it was only for 7-2 in this case)
Good question, but I don't know the answer myself. I assume this game has 2 types of reverse L pipe. Normally Mario's able to enter the top (like 7-2), but it's a different type of pipe in other stages.
Asumeh wrote:
Also nitpick, but I believe you linked the wrong movie-to-beat... Here, think you meant: [5301] NES Super Mario Bros. Special: 35th Anniversary Edition by web2000, gaster319 & slither in 20:01.37
Yes. I just fixed that. Thanks.
Recent projects: SMB warpless TAS (2018), SMB warpless walkathon (2019), SMB something never done before (2019), Extra Mario Bros. (best ending) (2020).
web2000
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Great optimizations and fantastic entertainment. Definitely a yes vote from me!

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