Successfully complete the game two times to view an ending sequence that features a bonus FMV sequence.
Do Not Lose Items When You Die
When you die, press Home and quit the game. Reload the same file and you will have the items. However, you will be as far back as you were when you saved. Be careful when you do this.
Get Alkmaion images
Defeat in level 6 Boss fight.
Get Briareos images
Defeat in level 4 Boss fight.
Get Minos images
Defeat in level 3 Boss fight.
Get Sphinx images
Defeat in level 5 Boss fight.
Infinite Power Up From Start Of Game
When you first begin the game and are in the room where you first get a weapon and learn how to turn items into Elixir, turn both weapons that you get into Elixir. Because the programmers did not want you to have to start without a weapon, both weapons will re-appear. Collect both weapons again, then turn both of them into Elixir again. Repeat the process as long as desired. Because Elixirs are used to power-up you can make your character as powerful as desired immediately at the start of the game.
Unlock A.D.A.M in gallery mode
Save at least once.
Unlock Deucalion-A in gallery mode
Finish the game two times.
Unlock Deucalion-B in gallery mode
Finish the game two times.
Unlock Gryphus in gallery mode
Defeat in level 8 boss fight.
Unlock Lycaon in gallery mode
Beat Lycaon in the Tower.
Unlock Mars in gallery mode
Beat Mars in the Tower.
Unlock Statius in gallery mode
Defeat in level 7 boss fight.
Unlock True Ending
Beat the game two times to get the true ending with a cinematic cut scene.