- LEVEL SELECT:
START A NEW GAME, AT LEVEL 1 GO TO THE FIRST DOOR THAT OPENS, KILL THE ALIENS THEN IN THAT ROOM PRESS L1+L2+R1+R2+TRI.
YOU'LL SEE A GREEN FLASH, NOW QUIT GAME AND RETURN TO TITLE.
- INVINCIBLE:
START A NEW GAME, AT LEVEL 1 GO TO THE FIRST DOOR THAT OPENS, KILL THE ALIENS THEN IN THAT ROOM PRESS L1+L2+R1+R2+X. YOU'LL SEE A BLUE FLASH.