Space Invaders Cheats & Tips

At the main menu, press Circle and a level select menu will appear. If you go to Level 00, you'll fight a retro boss, and once you defeat this boss, a new option will open up, allowing you to play in Classic Space Invaders Mode.

Unlockable - How to Unlock

Classic Space Invaders - Beat the game on Normal Difficulty.

Maniacal Difficulty - Beat the game on Expert Difficulty.