This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Offset 0x1646 in the ELF has some debug menu strings. Verify if this is still accessbible.
It's not just any mahjong game... it's THE Mahjong game... well, the sequel to it, anyway. May or not be based on a horror film.
The extensionless file DAMMY, present at the root of the game's disc, is actually an MPEG video file which features a creditless variant of the opening of the Revolutionary Girl Utena anime.
