adelikat: 8-4 has now been improved by 1 frame!
This is a 148 149 frame improvement over the published movie by Happy Lee.
The improvement comes from busting 7 frame rules and elminating 1 lag frame, EDIT: and 1 frame improved in 8-4.
I recommend downloading the SMB Release package from my adelikat-TAS SVN.
It contains:
  • Savestates for every level (Use FCEUX2.1.1 and drag n' drop them on the emulator to watch any level you want in any order).
  • Memory watch file used in the making of the TAS
  • An outtakes folder that demonstrates varies failed strategies.
  • A MS Excel spreadsheet that shows not only frame counts but auto-calculates the number of frames needed to bust the next "frame rule" for any level. (The formula for x-4 levels is slighty bugged however).

New Tricks

3 new tricks are represented in this movie
  • The "Vine glitch"
    • Pressing L+R on a vine at the right time can send mario to the right side of the screen instantly. This is used to enable the "bullet bill flag pole glitch" where mario falls off the flag pole and runs against it. This is used in 2-1, 3-1, and 6-2.
      • Discovered by klmz,andrewg
  • Faster acceleration from a stop
    • By manipulating the speed subpixel address (0705) it is possible to save a half a pixel at the start of every level or coming out of every pipe. In x-4 levels it is possible to save over a pixel. Unfortunately the frame rule nullified this savings in nearly every level. However, it did help contribute to busting a frame rule in 3-4.
      • Discovered by klmz
  • The "magic subpixel"
    • Mario's walk from a flagpole to the castle is not set in stone. It can be manipluated by means of subpixel carry over. Meaning, the x subpixel value mario has when he hits the flag will be used in calculating his acceleration after the flag! The term "magic subpixel" was coined because the value of 48 seems to be the magic number on most every level; resulting a 103 frame walk to the castle rather than a 104 or 105 frame walk. Unfortunately this glitch doesn't technically "save" time due to the 21 frame rule.
      • Discovered by adelikat

The good, the bad, the ugly

These levels were improved: (the good)
  • 2-1: 63 frames - Vine glitch.
  • 3-1: 42 frames - Vine glitch.
  • 3-4: 24 frames - Combination of "Faster accleration", better boss fight, not doing backwards jumps (which cost 1/16th of a pixel)
  • 6-2: 42 frames - Vine glitch
  • 8-4: 1 frame - New acceleration trick.
This level was slower: (the bad)
  • 5-4: -21 frames - Bad randomness
    • Everyone is going to question this, but the randomness we got in 5-4 was HORRID. As a result there was not way to complete the level without losing at least 1 frame rule. We tried everything, including manipulating the level, the previous level, and even cheating to get to the level 21 frames faster to see if it would solve our woes. Getting there 21 frames faster changed the randomness but ultimately not enough to save time. But this hints to the fact that the fire wheels are determined by a universal timer. As such there is nothing we can do about it. If I thought otherwise, this wouldn't have been submitted, trust me.
This level is sooooo close! (the ugly)
  • 1-1
    • With the new acceleration trick and the "magic subpixel", 2 frames can be saved in 1-1 (see Outtakes/1-1fastest). This puts us 1 FRAME AWAY from busting the frame rule and improving both this and the warps movie! Ouch!

Summary

  • Aims for fastest time
  • Abuses programming errors in the game

mmbossman: It's nice to see such a hotly contested game be improved with such a visually appealing and surprising glitch. Accepting for publication.

adelikat: Processing.

Player (70)
Joined: 8/24/2004
Posts: 2562
Location: Sweden
Awesome TAS. Kept me entertained all way through. :) Thanks
Joined: 4/3/2006
Posts: 269
I didn't expect that the SMB game can still be improved by much. Very impressive and entertaining! voting yes.
Post subject: Re: #2361: adelikat, klmz, and andrewg's NES Super Mario Bros in 18:44.48
nesrocks
He/Him
Player (240)
Joined: 5/1/2004
Posts: 4096
Location: Rio, Brazil
NesVideoAgent wrote:
Aims for fastest time
This movie fails to do so because it doesn't take the warp zone. I vote no
Experienced player (698)
Joined: 2/19/2006
Posts: 742
Location: Quincy, MA
I have a strange feeling that 1-3 and 5-3 are improvable still. ^ and if those are improvable we'd improve 5-4 as well most likely. If we ever see an improvement it will most likely be in those two levels. EDIT: Also, I just tested level 5-1 again... and I've determined it should be unimprovable (using the bullet bill for the flagpole glitch is impossible to save time I believe).
Super Mario Bros. console speedrunner - Andrew Gardikis
Post subject: Movie published
TASVideoAgent
They/Them
Moderator
Joined: 8/3/2004
Posts: 14773
Location: 127.0.0.1
This movie has been published. The posts before this message apply to the submission, and posts after this message apply to the published movie. ---- [1331] NES Super Mario Bros. "warpless" by adelikat, klmz & andrewg in 18:44.48
Joined: 6/4/2009
Posts: 570
Location: 33°07'41"S, 160°42'04"W
Torrent this do not work ( Many peer, all 0% Now it work! 100%! Good!
Joined: 6/4/2009
Posts: 570
Location: 33°07'41"S, 160°42'04"W
By the way yes vote
Joined: 6/4/2009
Posts: 570
Location: 33°07'41"S, 160°42'04"W
No wait it does not work. I download it 100% ok But after 9 minutes and 33 seconds it stops. Help?
adelikat
He/Him
Emulator Coder, Expert player, Site Developer, Site Owner (3581)
Joined: 11/3/2004
Posts: 4736
Location: Tennessee
Looks like something goofed in the encoding. I'll have to replace the avi. New one should be up in some hours.
It's hard to look this good. My TAS projects
adelikat
He/Him
Emulator Coder, Expert player, Site Developer, Site Owner (3581)
Joined: 11/3/2004
Posts: 4736
Location: Tennessee
New AVI uploaded. Please redownload.
It's hard to look this good. My TAS projects
Joined: 6/4/2009
Posts: 570
Location: 33°07'41"S, 160°42'04"W
Thank you much, sir! It now works perfect! Sorry for old post, you can delete mine, I can't.
Joined: 3/29/2004
Posts: 224
Is there something I'm not understanding about the last part of 7-1? edit: and 8-2?