User Files from TaoTao

#638721789010637317 - NES Lot Lot (J): screen glitch with rapid pausing

LotLot-ScreenGlitch.fm2

In 00:30.85 (1854 frames), 297 rerecords

System: Nintendo Entertainment System

18 downloads

Uploaded 10 days ago by TaoTao (see all 96)

You can do swap operations during rapid pausing. In this movie, I enable redraw flags for all rooms, and the game fails to update some VRAM in time.

But this glitch only affects drawings, so I think it is not so useful.

EDIT: Probably you can corrupt the PPU transfer queue ($0400-$04FF, typical ring buffer) with this technique. For example, if you write a length=253 entry to the queue, the NMI thread will loop infinitely. But anyway, I think it will be extremely difficult to take advantage of this for TAS.

#638650442897447472 - NES Wizardry (J): save glitch test

WizardryJ-SaveGlitchTest.bk2

In 00:33.01 (3859 frames), 3247 rerecords

Game: Wizardry: Proving Grounds of the Mad Overlord ( NES, see all files )

27 downloads

Uploaded 10/20/2024 6:04 PM by TaoTao (see all 96)

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This game often backups hero structs. And, if a hero struct has wrong checksum/CRC, the game restores it from the backup. I crafted a fake backup struct on SRAM (with z3 solver), and created an amulet by changing name.

On Famicom version, the game displays a logo every time you reset, so this movie is not so fast. If this save glitch can be executed on NES version, it will be quite fast. But, it might be more difficult to execute this on NES version, because you can use fewer character kinds for a hero name.

#638596894564787259 - NES Mirai Shinwa Jarvas (J) TAS

Jarvas-tas-20240816.fm2

In 1:02:14.82 (224458 frames), 29718 rerecords

System: Nintendo Entertainment System

28 downloads

Uploaded 8/19/2024 6:37 PM by TaoTao (see all 96)

Download (5.00 MB) Information

This improves narimasa's TAS on nicovideo (part1, part2, part3) by about 16 minutes.

Encode: part1, part2
My game resources (Japanese)

Objectively, this game will be quite bad. But it was interesting for me to optimize this run.

#638551782606195767 - FDS Moonball Magic (J): TAS made in 2009, resynced for FCEUX 2.6.6

MoonBallMagic-tasv1-20090807-resync.fm2

In 03:48.14 (13711 frames), 5 rerecords

Game: Moonball Magic ( FDS, see all files )

35 downloads

Uploaded 6/28/2024 1:31 PM by TaoTao (see all 96)

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EDIT: if you newly tas this game, probably you should use NesHawk/SubNesHawk. Because, this game doesn't use NMI and uses PPU_STATUS ($2002) to wait VBLANK. FCEUX doesn't emulate the race-condition of PPU_STATUS, so an effective FPS differs between FCEUX/NesHawk. (FCEUX: 60.10, NesHawk: ~58. for details, see NesDev Wiki)

On SubNesHawk, You might be able to avoid the drop-frames by using the sub-frame pauses, but it will need the dev-build of BizHawk, because BizHawk 2.9.1 doesn't support FDS disk operations on SubNesHawk.

old encode

I made this in 2009, and now resynced this for FCEUX 2.6.6 (just removed some frames).

I couldn't resync this for NesHawk. (desynced at stage 2, and FDS load times quite differ)

#638548422442451009 - NES Tanigawa Kouji no Shougi Shinan 3 (J): a cheat to clear the Meijinsen mode

Tanigawa3-MeijinCheat.fm2

In 00:45.51 (2735 frames), 491 rerecords

System: Nintendo Entertainment System

38 downloads

Uploaded 6/24/2024 4:10 PM by TaoTao (see all 96)

Download (41.29 KB) Information

Put your king to 27, and put your rook to 28. And, try to move your king to the opponent king.

#638511811549801985 - SNES Same Game (J): SameGame "medium" mode score 2229

SameGameSFC-tas-medium-score2229.bk2

In 00:43.94 (2641 frames), 599 rerecords

Game: Same Game ( SNES, see all files )

60 downloads

Uploaded 5/13/2024 7:12 AM by TaoTao (see all 96)

Download (1.59 KB) Information

encode: https://www.nicovideo.jp/watch/sm43784294
solver: https://github.com/taotao54321/SameGameSFCMedium

Probably highest, but I haven't completely understood about the RNG.

#638510427681392753 - SNES Same Game (J): SameGame "easy" mode score 844

SameGameSFC-tas-small-score844.bk2

In 00:49.84 (2995 frames), 1057 rerecords

Game: Same Game ( SNES, see all files )

1 comment, 58 downloads

Uploaded 5/11/2024 4:46 PM by TaoTao (see all 96)

Download (1.59 KB) Information

solver: https://github.com/taotao54321/SameGameSFCSmall

Probably highest, but...

I didn't care about hash collisions, so some unfortunate collisions might hide the optimal solution (though I think this probability is low).
I haven't completely understood about the RNG.

#638410278864544870 - NES Hokuto no Ken 4 (J): moonwalk glitch, getting very strong Kazemaru

Hokuto4-MoonWalkGlitch.fm2

In 02:25.19 (8726 frames), 766 rerecords

System: Nintendo Entertainment System

86 downloads

Uploaded 1/16/2024 6:51 PM by TaoTao (see all 96)

Download (131.15 KB) Information

digest encode

You can zip through some obstacles with U+D / L+R inputs.

When Kazemaru joins, his level will be (the main hero's level) - 1. So, if the main hero's internal level is 0, Kazemaru's internal level will be 255.

But anyway, you have to win the 1on1 battle against the last boss, and it will take a long time to earn levels. I hope there are some more glitches to solve this problem.

#638402593442805940 - NES Kaettekita! Gunjin Shogi: Nanya Sore!? (J): ending cheat

GunjinShogiNanyasore-EndingCheat.bk2

In 00:00.83 (136 frames), 149 rerecords

Game: Kaettekita! Gunjin Shougi: Nanya Sore!? ( NES, see all files )

91 downloads

Uploaded 1/7/2024 9:22 PM by TaoTao (see all 96)

Download (1.41 KB) Information

Slower than the DPCM exploit.

#638402592738797547 - NES Kaettekita! Gunjin Shogi: Nanya Sore!? (J): DPCM exploit, starts from zero-cleared RAM

GunjinShogiNanyasore-ZeroRam.bk2

In 00:00.56 (1903 frames), 553 rerecords

Game: Kaettekita! Gunjin Shougi: Nanya Sore!? ( NES, see all files )

1 comment, 85 downloads

Uploaded 1/7/2024 9:21 PM by TaoTao (see all 96)

Download (1.64 KB) Information

encode

On the default RAM setting, there are no sound in the ending...

#638365738177104719 - NES Super Pinball (J): testrun (3087 frames)

SuperPinball-testrun-3087f.fm2

In 00:51.37 (3087 frames), 7376 rerecords

Game: Super Pinball ( NES, see all files )

84 downloads

Uploaded 11/26/2023 5:36 AM by TaoTao (see all 96)

Download (46.57 KB) Information

encode

Just a testrun. Probably improvable with better RNG manipulation, etc.

When a ball bounces by bumpers etc., you can sometimes manipulate the direction of the ball with input. (Probably the address $5A affects.)

This movie syncs on NesHawk as is, but I confirmed that another .fm2 movie only partially syncs on NesHawk.

Memory map:

addr	type	description
$37	u16le	ball position x (subpx)
$39	u16le	ball position y (subpx)
$3B	i16le	ball velocity x (subpx)
$3D	i16le	ball velocity y (subpx)
$5A	u8	affects the bounce direction of the ball (can be manipulated with input)