Cheat: Skill Point Bonus
Load a completed (beat the game) from the first Xenosaga game or Xenosaga: Reloaded to get starting skill point bonuses. The bonus amount is dependent on the level of your characters when you beat the game.
Cheat: Clear Data
When you beat the game, you will be asked to make a clear data. When you load the clear data you will start at the Save Plate in the Elza with Hakase/Professor blocking your path and all the dungeons and events will be unlocked. If you have files from other Xenosaga games on your memory card, you will unlock new features when you start a game.
Cheat: Get Bathing Suits
Load a completed (beat the game) from the first Xenosaga game or Xenosaga: Reloaded to unlock bathing suits for Kos-Mos and Ziggy.