Costume 1 - Complete the game on any difficulty.
Costume 2 - Complete the game on any difficulty.
Costume 3 - Complete the game on God Mode.
Costume 4 - Complete the game on Titan mode.
Costume 5 - Complete the game on Titan mode.
Costume 6 - Collect 20 Cyclops Eyes in the main game.
Costume 7 - Receive the God ranking in Challenge mode.

High Definition Mode

You must enter L1, L2, L3, CIRCLE and SQUARE all at once