One time i was able to start it, but all the water was black and the game hanged finaly after a couple of seconds:
Another weird thing is that on this NTSC console, the narration text at the beginning is white, not blue So I thought - maybe the game tries to read-back the palette or OAM and it fails because this UA6528 PPU can't do that, but the game does not seem to do that. I blamed the PPU, but on my test console, where I can individually toggle one of two CPUs (Dendy/NTSC) and PPUs (Dendy/NTSC) separatelly, it looks like this
Code: Select all
CPU | PPU | Game
------+------+-----
NTSC |NTSC | hangs (text is white)
Dendy |NTSC | works (text is blue)
Dendy |Dendy | works (text is blue)
NTSC |Dendy | hangs (text is whit)