Enable the "Level select" code. Then start a game, pause and press Square. Now fifty additional lives will be added to the game.
At the level selection screen, enable the "Level select" code. Then, hold Square + Start.
When shooting hold Down, X, Triangle tp get a huge fire ball.
At the title screen, press Triangle, Up, Right, Down, Left, Triangle, Left, Down, Right, Up, Triangle. Then on the main menu, select the "Cool" option and press X to activate the "Open Levels" selection. Return to the main menu and select the "Start" option. Select the "Continue Game" option and press X at the password screen. A level selection menu will now appear.
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