Star Ocean: Second Evolution Cheats

Cheat: Suspend Random Encounters

In a dungeon or cave, pop open the UMD slot and remove your UMD from the PSP and random encounters will cease! Pop it back in before a boss battle and you’re good to go.
Unlockable: Extra Modes

Defeat 2,000 monsters to unlock both Galaxy Mode and Universe Mode (the latter is the most difficult).
Unlockable: Secret Dungeon

To unlock the secret dungeon, the Cave of Trials, head to the save point just before you fight Gabriel. Your save icon will be blue. Now, head to Fun City and go to the north side of the Arena. Here, you’ll find an old man that says he can recover your memories. Accept, and you’ll be transported to Arlia on Expel. Leave Arlia and travel to the Cave of Trials, located in the southwest corner of the world map. It’s a dot on a desert island.

Unlockable: Voice Player

Beat the game to unlock the Voice Player. Each additional character you beat the game with adds their voice for sample playback.

Star Ocean: Second Evolution Cheats

Unlockable: Extra Modes

Defeat 2,000 monsters to unlock both Galaxy Mode and Universe Mode (the latter is the most difficult).