NES Games on GBA

[MarioMania]

Is there any NES emulators for the GBA beside Pocket NES,  Alot of Game I have won't work like Castlevania 3

[satoshi_matrix]

eh? PocketNES is the only GBA nes emu because of how well it does. If your Castlevania 3 wont play, then you have a bad rom dump. That, or check your Pocket NES version. It might be outdated.