Pro Action Replay Codes:
Infinite Lives - 00C3A0:03 -Rune

Game Genie Codes:
Ghosts are faster than normal after 1st level - 3E1-93A-6EA + 099-94A-E62 -Galoob
After a power pill runs out the ghosts go mad - C92-D1A-C45 -Galoob
Infinite lives - 00C-F29-19E -Galoob
Start with 1 life - 014-DF9-E66 -Galoob
Start with 9 lives - 094-DF9-E66 -Galoob