At the main menu, press L1, Left, L2, Down, Select, Left, Down, R2, R2, R2, Select, Up. You will hear a sound if done correctly. Enter the game and you will immdiately have access to four secret levels.

Note:This code can't be used with any other code.

At the main menu press Down, Up, L1, Right, L1, Up, Right, SELECT, Right, R2, L1, L2. You will hear a sound if done correctly. Now you can see the programmers' faces loating in space.

At the main menu press Right, L1, Up, Up, Down, Right, R2, L2, R2, Down, Up, Down. Select any ship, start the game, then quit out of the game. Now all ships will be powered up and Sector 5 will be available.

At the main menu press Left, Right, L1, Left, Right, L1, R2, R2, L2, Left, Right, Up. This code may not work if you have entered the Secret Levels code.