The following are known Action Replay Codes for Resident Evil 3: Nemesis on SEGA Dreamcast.
Infinite Health (Jill)
EFE73CD4000000C8
Have All Files
74753769FFFFFFFF
Have All Maps
43967BA2000000FE
7469B769000000FE
Have 10 Slots
98F02E9D0000000A
Infinite...