• Level select

Press 7, 7, 9, 8, 8, 9, 9 at the map screen. | [Sent by DayleJ]
  • View programmers' heads

Press 1, 4, 2, 8, 3, 7, 2, 2 at any level with the three "cheerleader" aliens before game play starts. | [Sent by DayleJ]
  • Win current game

Press 7, 7, 9, 8, 8, 9, # before game play begins. A sound will confirm correct code entry. | [Sent by DayleJ]