- WEAPONS POWER-UP 1:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS DOWN, UP, UP,
Z, Z, LEFT, RIGHT.
- WEAPONS POWER-UP 2:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS Cv, C^, UP, Z, Z, LEFT, C>.
- SURREAL MODE:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS DOWN, UP, RIGHT, RIGHT, RIGHT, A, LEFT.
- MUTANT ALIEN:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS Cv, UP, Z, Z,
C>, RIGHT.
- FAT LEGED ALIENS:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS LEFT, A, RIGHT, DOWN.
- SMART BOMB:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS A, C^, C^, UP, LEFT.
- REFILL HEATH & FUEL:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS DOWN, UP, RIGHT, A, B, LEFT, C>.
- KILL ADAM:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS B, LEFT, C>, C>, DOWN.
- BLACK ADAM:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS C<, C>, A, Cv, C>, LEFT.
- ALL ARTIFACTS:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS UP, Cv, C>, Z, UP, LEFT.
- TALL ADAM:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS B, A, C^, A, C^, A.
- SHORT ADAM:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS DOWN, C<, A, RIGHT, Z.
- DANCER:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS DOWN, UP, C^, DOWN, C>, C>.
- WEAK BOSS:
ENTER YOUR NAME AS "ICHEAT" THEN DURING GAME, PRESS Z, C>, C>, B, LEFT, C>.
- VARY EASY MODE:
AT DIFFICULTY SELECT, PRESS LEFT RAPIDLY UNTIL VARY EASY APPEARS.
- VARY HARD MODE:
AT DIFFICULTY SELECT, PRESS RIGHT RAPIDLY UNTIL VARY HARD APPEARS.
