• Extra bonus

Retrieve a falling human as a wave ends. | [Sent by DayleJ]
  • Flossie Defender

Enter OVINE as a high score name. The sound of a sheep will confirm correct code entry. Press any button to select a "Defender Plus" game, then press A to start. | [Sent by DayleJ]
  • Level skip

Enter BEEST as a high score name. The sound of a sheep will confirm correct code entry. Begin a Defender 2000 game and press 3 during game play to jump to the next level. Press 6 during game play to access the warp screen. | [Sent by DayleJ]
  • Plazma Pong

Enter NOLAN as a high score name. The word "Perfect" will be spoken to confirm correct code entry. A "Plazma Pong" option can now be selected as a game option.