Data East
From MAMEDEV Wiki
- Rohga - protection issues on some bosses (causes address error)
- Double Wings - protection supplies jump addresses etc.
- Fighters History - still remaining protection issues
- Funky Jet - protection issue at end of game
- Zero Target / Counter Steer - very old ROZ style hardware. Haze looked at it a few times, doesn't really make sense to him.
- High Seas Havoc - Genesis hardware, but uses a PIC to control state based encryption.. all the code that matches the Megadrive version has been decrypted, but the extra code (startup code, coins etc.) appears to have some annoying extra encryption
