CODE KEY IN . . . EFFECT . . . 1 SZSTVAVI Start game with infinite lives 2 AASGKLGE Start game with 8 lives 3 SLKIZYVI Start game with infinite peppers 4 APVGSLIA Start game with double peppers 5 GZVIAZEI Anti-gravity shoes 6 YPESOUGO Peter Pepper(tm) gets super speed 7 SZKNNIAX Fast play for experts 8 SXVSSXSU Monsters always move slowly 9 SXVSSXSU + GOVSVXAO Monsters move at double speed 10 SXVSSXSU + YOVSVXAO Monsters move at quadruple speed