We have 3 cheats and tips on PlayStation 2. If you have any cheats or tips for Hidden Invasion please send them in here. You can also ask your question on our Hidden Invasion Questions & Answers page.
At the main menu, enter up, down, down, up, left, left, up, right, right, up, up, up.
Big heads and deformed bodies
At the title screen, press Left(2), Up(2), Right(2), Down(2). Start a game and all players and enemies will have big heads and deformed bodies.
Big head mode:
Quickly press Left(2), Up(2), Right(2), Down(2) at the title screen. A sound will confirm correct code entry.
Oogie Boogie mode:
Quickly rotate the Left Analog-stick counter-clockwise four times at the title screen. A sound will confirm correct code entry. Many objects will be bouncing during game play.
Easy mode:
Quickly press Up, Down(2), Up, Left(2), Up, Right(2), Up(3) at the title screen. A sound will confirm correct code entry.