GBA Info - Revision history

Arnethegreat: /* Wrong Warps differences */

2026-04-17T08:58:42Z

Wrong Warps differences

← Older revision		Revision as of 08:58, 17 April 2026
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	Out-of-bounds warps read into current screen VRAM table so it can be manipulated into going different exits depending on what graphic tiles are available to load.		Out-of-bounds warps read into current screen VRAM table so it can be manipulated into going different exits depending on what graphic tiles are available to load.

			[https://www.youtube.com/watch?v=p1EQRSOecxo 3-7 (OoB) Warp to 6-8 Room 2]

	== World Records ==		== World Records ==

	Somebody has done it		Somebody has done it

Arnethegreat: Added information about the Goal OAM Overflow Corruption - I leave some more guides to Pablo

2026-04-17T08:57:46Z

Added information about the Goal OAM Overflow Corruption - I leave some more guides to Pablo

← Older revision		Revision as of 08:57, 17 April 2026
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	== Goal OAM Overflow Corruption (unlocking new levels) ==		== Goal OAM Overflow Corruption (unlocking new levels) ==

	~~TODO~~		On the GBA version of Yoshi's Island, following the OAM tables (sprite graphic entry data) is data for the current played level ID (IWRAM: 6288) and current World Map Cursor (IWRAM: 633E). This means if you overflow the OAM table with enough sprites, you start writing arbitrary data into these addresses and on level completion can end up on other level tiles on world map (including glitched worlds/levels).

	~~Explain~~, ~~link some pablo stuff~~		This is usually done by gathering a lot of enemies at goal ring, using a cloud item to turn them into clouds and then entering the goal at the same time.
			This causes too many sprite graphics loaded at the same time which goes past the normal table and corrupts World Map data.

			[https://www.youtube.com/watch?v=MS7jjJG8oyI Warping to 6-8 from 2-7]

			[https://www.youtube.com/watch?v=kvwftYPLWPo 1-1 Warp to 3-2]

			[https://www.youtube.com/watch?v=p1EQRSOecxo 1-1 warp to 3-7]
	''		''
	== Wrong Warps differences ==		== Wrong Warps differences ==
	''		''
	~~TODO~~		GBA doesn't clear previous screen exits from levels you visited so wrong warping can bring you there. This means if you previously played a level, even from another file, you can warp to those exits. This also means doing runs that utilizes warps need to do it from a hard reset to avoid warping to already completed exits.


	~~GBA doesn't clear previous screen exits from levels you visited so 1-1 warping can bring you there.~~		Out-of-bounds warps read into current screen VRAM table so it can be manipulated into going different exits depending on what graphic tiles are available to load.
	Out-of-bounds warps read into VRAM table so it can be manipulated into ~~many places~~

	== World Records ==		== World Records ==

	Somebody has done it		Somebody has done it

Arnethegreat: Some information about differences in glitches

2026-04-17T08:19:27Z

Some information about differences in glitches

← Older revision		Revision as of 08:19, 17 April 2026
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	''Note that this is under investigation and information may change and this is still not fully understood''		''Note that this is under investigation and information may change and this is still not fully understood''

			== Relevant Glitch Differences ==

			[[Glitch_List#Tongue_Glitch\|Tongue Glitch]] can not be achieved at save rings in the same way but can still be done with toadies. However tongue glitch does not boundlessly create OAM entries causing memory corruption.

			[[Null Egg]] is still possible but the majority of sprites crash on goal entry and as of now, there is no known way to bring a null egg out of level. There's also some unique stuff that can happen when carrying a null egg.

	== Goal OAM Overflow Corruption (unlocking new levels) ==		== Goal OAM Overflow Corruption (unlocking new levels) ==

Brooklyn9d5 at 08:01, 17 April 2026

2026-04-17T08:01:09Z

← Older revision		Revision as of 08:01, 17 April 2026
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	Super Mario Advance 3: Yoshi's Island is the port of Yoshi's Island to the GBA. It's a very faithful port but it ''does'' have some differences like minor level changes, new sound effects, and unfortunately, a ~~smaller~~ screen.		Super Mario Advance 3: Yoshi's Island is the port of Yoshi's Island to the GBA. It's a very faithful port but it ''does'' have some differences like minor level changes, new sound effects, and unfortunately, a lower screen resolution.

	Most importantly due to it being a new system, there are differences in how some glitches that corrupt memory work especially OAM overflow and Out-Of-Bounds wrong warps.		Most importantly due to it being a new system, there are differences in how some glitches that corrupt memory work especially OAM overflow and Out-Of-Bounds wrong warps.

Brooklyn9d5 at 07:51, 17 April 2026

2026-04-17T07:51:46Z

← Older revision		Revision as of 07:51, 17 April 2026
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	Super Mario Advance 3: Yoshi's Island is the port of Yoshi's Island to GBA, It is a very faithful port but ~~has~~ some ~~small~~ differences ~~in levels with~~ new ~~sounds but with the downside of~~ a smaller screen.		Super Mario Advance 3: Yoshi's Island is the port of Yoshi's Island to the GBA. It's a very faithful port but it ''does'' have some differences like minor level changes, new sound effects, and unfortunately, a smaller screen.

	Most importantly due to it being a new system, there are differences in how some glitches that corrupt memory work especially OAM overflow and Out-Of-Bounds wrong warps.		Most importantly due to it being a new system, there are differences in how some glitches that corrupt memory work especially OAM overflow and Out-Of-Bounds wrong warps.

Arnethegreat: Start of page,

2026-04-17T07:44:15Z

Start of page,

New page

Super Mario Advance 3: Yoshi's Island is the port of Yoshi's Island to GBA, It is a very faithful port but has some small differences in levels with new sounds but with the downside of a smaller screen.

Most importantly due to it being a new system, there are differences in how some glitches that corrupt memory work especially OAM overflow and Out-Of-Bounds wrong warps.
This leads to GBA having unique speedruns that may be interesting.

''Note that this is under investigation and information may change and this is still not fully understood''

== Goal OAM Overflow Corruption (unlocking new levels) ==

TODO

Explain, link some pablo stuff

''
== Wrong Warps differences ==
''
TODO

GBA doesn't clear previous screen exits from levels you visited so 1-1 warping can bring you there.
Out-of-bounds warps read into VRAM table so it can be manipulated into many places

== World Records ==

Somebody has done it