Pro Action Replay Codes:
Level Select Enabled - 00C61A:01
Infinite Lives - 00C63D:05 -Rid
Infinite Energy - 00C63E:0C -Rid
Invulnerability - 00C6DC:FF -Rid

Game Genie Codes:
Invulnerability - B67-7AB-7F4
Start with 1 life - 017-B98-E66 -Galoob
Start with 5 lives - 057-B98-E66 -Galoob
Start with 9 lives - 097-B98-E66 -Galoob
Start with 1/2 of a Circle of Life - 027-BB8-C4A -Galoob
Start with 1 Circle of life - 047-BB8-C4A -Galoob
Start with no Circles of Life - 007-BB8-C4A -Galoob
Note: Above Game Genie codes only work on 'LION PRINCE' difficulty level.
Get hit and become Invisible - 3A6-439-2A2 -Galoob
Flash less after getting hit - 0F6-639-7FB -Galoob
Flash longer after getting hit - FF6-639-7FB -Galoob
Ladybugs don't restore any energy - 3A9-9E9-2A2 -Galoob
Infinite lives - 3A6-88C-2A2 -Galoob
Invisible - 3E5-B5A-4CA -Galoob
Invincible - 3E7-73B-7F4 + 3D7-76B-A27 + 327-77B-082 -Galoob