We have 1 cheats and tips on PSP. If you have any cheats or tips for Star Soldier please send them in here. You can also ask your question on our Star Soldier Questions & Answers page.
Unlock God difficulty:
Complete level 10 on Hard mode
Unlock Boss on Parade mode:
Complete the game on any difficulty.
Unlock Stage Select mode:
Clear the Boss on Parade mode.
Unlock Sound Test:
Get a high score in the Normal, 2-Minute, and 5-Minute modes with all 3 ships in the game.