User Files from TaoTao

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I refered this RTA video.

This run will be improvable with better RNG manipulation, etc.

Accidentally I found a crash glitch, but I haven't investigated the details yet.

It seems that you have to equip no weapon. (And, you might have to go down with an enemy?)

EDIT (2025/03/20): In this glitch, the game seems to fail to switch banks correctly. This game assumes that the main thread is always loading PRG 14 when a NMI is triggered, but in this movie, the main thread is loading PRG 5 when a NMI is triggered. So, after returning from the NMI, the main thread resumes from PRG 14 instead of PRG 5, and crashes.

See Ikari Warriors thread.

See Ikari Warriors thread.

see ktwo's forum post.

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.

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.

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

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

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.

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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)

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

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

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

Probably highest, but...

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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.

Slower than the DPCM exploit.

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

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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:

Not theoretically optimal solution. I bruteforced only for endgame. Until the end of midgame, I used beam search to enumerate good positions.

I might submit this.

I might submit this.

This might improve katsuster's submission?

For forum post.

You cannot manipulate the RNG by inputs anymore.

I made this a long time ago. Note that this movie starts from stage 201 with an in-game code.

Improved the stage 0, 1, 5, 23.

Improved the stage 20, 25. Helped by Moyou_Jo.