Select the "Cheats" option at the main menu. Hit the following color crystals from left to right (in order). Red, Blue, Yellow, Red, Blue, Yellow. To accept the code, perform a downward thrust on the center pedestal piece. A sound will confirm correct code entry. The following codes may now be enabled in the same manner.
| Code: | Result: |
| Hit Yellow two times, Blue two times, Red three times, Yellow three times, Red two times, Blue two times. | All items half price |
| Hit Blue once, Red once, Yellow once, Red two times, Yellow once, Red three times. | Animated Romun fleet battle sequence |
| Hit Blue once, Red once, Yellow once, Red two times, Yellow once, Blue three times. | Animated Romun fleet sequence |
| Hit Blue once, Red once, Yellow once, Red two times, Yellow once, Red once. | CG Romun fleet battle sequence |
| Hit Blue once, Red once, Yellow once, Red two times, Yellow once, Blue three times. | CG Romun fleet sequence |
| Hit Red five times, Blue three times, Yellow once, Red once, Blue two times, Yellow three times. | English intermission sequence of Olha on beach |
| Hit Blue once, Red once, Yellow once, Red two times, Blue once, Yellow two times. | English Napishtim sequence |
| Hit Blue two times, Yellow once, Red once. | English opening sequence |
| Hit Blue once, Red once, Yellow once, Red two times, Blue once, Yellow three times. | English subtitled Napishtim sequence |
| Hit Red four times, Blue four times, Yellow four, Blue two times, Yellow two times, then Red two times. | game completion bonuses |
| Hit Blue once, Red once, Yellow once, Red two times, Blue once, Yellow once. | Japanese Napishtim sequence |
| Hit Blue once, Yellow once, Red once. | Japanese opening sequence |
| Hit Blue four times, Yellow once, Red once. | Japanese opening sequence with English text |
| Hit Blue once, Red once, Yellow once. | Japanese sequence of Olha on beach |
| Hit Red five times, Blue three times, Yellow once, Red once, Blue two times, Yellow three times. | Japanese sequence of Olha on beach in hard mode |
| Hit Blue once, Red two times, Yellow once. | Japanese sequence of Olha on beach with English subtitles |
| Hit Blue once, Red once, Yellow once, Red two times, Blue once, Yellow four times. | Japanese subtitled Napishtim sequence |
| Hit Yellow two times, Red two times, Blue two times, Yellow once, Red once. | Maximum 20 item tool increase |
| Hit Blue two times, Yellow three times, Red once, Blue once, Red three times, Yellow two times. | Maximum Blirante sword |
| Hit Blue once, Yellow two times, Red three times, Blue three times, Red two times, Yellow once. | Maximum Ericcil sword |
| Hit Blue once, Yellow once, Red once, Blue three times, Red three times, Yellow three times, Blue once, Yellow once, Red once. | Maximum for all three swords |
| Hit Blue three times, Yellow two times, Red once, Blue once, Red two times, Yellow three times. | Maximum Livart sword |
| Hit Red once, Blue two times, Red two times, Blue once. | Start at level 10 |
| Hit Red once, Blue two times, Red two times, Blue two times. | Start at level 20 |
| Hit Red two times, Blue two times, Red two times, Blue two times. | Start at level 30 |
| Hit Red two times, Blue once, Red two times, Blue two times, Yellow once. | Start at level 40 |
| Hit Red two times, Blue two times, Yellow two times, Red two times, Blue two times, Yellow two times. | Start at level 60 |