Get Fayt to fart!  -  Very Quickly press X, R1, L1, Triangle, Square and Circle. Its Hilarious!!!

Unlock Music Test  -  Complete 60% or more of the Battle Collection.

Unlock Universe Difficulty  -  Complete 30% or more of the Battle Collection.

Unlock 4th Dimension Difficulty  -  Collect 70% of the Battle Collection.

Unlock Cave Of Trials Dungeon  -  Beat the game, and a special bonus 10 stage boss dungeon will be unlocked.

Battle Trophy Rewards
15% or 45 trophies - Unlocks 2P color during the game. Press TRIANGLE at the status screen to use this.
25% or 75 trophies - Unlocks Universe mode when starting a new game
40% or 120 trophies - Unlock 3P color during the game. Press TRIANGLE at the status screen to use this.
55% or 165 trophies - Unlocks music test. Press SQUARE at the battle trophy screen.
65% or 195 trophies - Unlocks 40 mode when starting a new game.
80% or 240 trophies - Unlocks 4P color during the game. Press TRIANGLE at the status screen to use this.
95% or 285 trophies - Unlocks full active mode in battles when starting a new game.

Secret scene with maria and nel having s  -  First obtain 100 percent in the game and that includes beating the bonus dungeons obtaining max levels for maria and nel and getting there best equipment and weapons in the game after that is done go in to the main menu of the game itself and enter select(10), start(10), and hold square, triangle, circle, and x for 2 minutes and then you will hear a moaning sound that is how you will know you know input the cheat correctly once all that is done start new on any difficulty and the first scene you will see will be nel and maria having sex in maria's bedroom this scene is about 20 minutes long and then conclude and the regular beginning scene will follow so have a very very good time watching these two go at enjoy.