All cheats at the same time
If you go to the enigma fill in these words:
Code - Effect
BENGAL - Immortality
GOURAMI - Bullet Shield
DISCUS - Unlimited Ammo
PLECO - Silver Bullet
CICHLID - Achilles Head
LOACH - All Replay Items
ZEBRA - Invisible Soldiers
TETRA - Men with Hats
BOTIA - Perfectionist Mode