WS Flash Masta v5.1

[SirRockALot]

You're right about Tetris, it seems I can avoid the issue by just tapping the button as quickly as possible. I don't really know that much about the WonderSwan, on the GBC you can change palette during boot with button combinations, guess they allow you to fall back to the WS non-color version this way, interesting.

GGP2 seems to have either graphics corruption or outright crashes after a loss in survival mode. So far it has happened every time. Before that the game plays just fine. I'm using the unmodified ROM from the Hardware Target Game Database formerly known as EverDrive Pack collection.