• Bonus Level

After you beat the game wait for the credits to roll. There will be an extra level called Milk Run. | [Sent by Syndish]
  • Elvis Sighted

You must play all the way through the game until you reach Level 10. There is a huge moon base (bigger than the others) right at the beginning of the level. Blow it up and then fly over it again. You will see Elvis with his yellow cape waving his arms! | [Sent by Syndish]
  • Invincibility

Press II to pause the game during play and enter this master cheat: B, A, C, C, A, A, and X.

Press II again, enter any of the codes below, and then press X. You can use the missile power-up and smart bomb only once per mission.

Invincibility: A, B, A, C, A, A, B, A. "Invincible" message appears. | [Sent by Syndish]
  • Laser Power-Up

Press II to pause the game during play and enter this master cheat: B, A, C, C, A, A, and X.
Press II again, enter any of the codes below, and then press X. You can use the missile power-up and smart bomb only once per mission.

Laser Power-up: C, A, A, B, A, C, A. "Xtra Laser" message appears. | [Sent by Syndish]

  • Missile Power-Up

Press II to pause the game during play and enter this master cheat: B, A, C, C, A, A, and X.

Press II again, enter any of the codes below, and then press X. You can use the missile power-up and smart bomb only once per mission.

Missile Power-up: C, A, A, B, A. "Nuke 'Em Up" message appears. | [Sent by Syndish]
  • Smart Bomb

Press II to pause the game during play and enter this master cheat: B, A, C, C, A, A, and X.

Press II again, enter any of the codes below, and then press X. You can use the missile power-up and smart bomb only once per mission.

Smart Bomb: A, C, A, B, A, A, C, A, A, A. "Smart Bomb" message appears. | [Sent by Syndish]