All weapons
Pause game play and press Up + 1, Down + 1, Up + 2, Down + 1, Down + 1, Down + 2.
Level skip
Pause game play and press Down + 2, Down + 1, Up + 2, Down + 2, Down + 2, Up + 1, Down + 2, Up + 1. Resume game play to jump to the next level.
Nine lives
Pause game play and press Up + 1, Down + 1, Down + 1, Up + 2, Down + 2, Up + 2, Up + 1, Up + 1. Resume game play with nine lives.
