All weapons:
Enter ICHEAT as a name. Then, press A, Right, C-Down, C-Right, C-Up, A, Left during game play. All weapons normally available on the current level will be available. The message "Weapons Cheat" will appear to confirm correct code entry. Repeat the code to disable it.

Weapons power-up:
Enter ICHEAT as a name. Then, press C-Down, C-Up, Up, Z(2), Left, C-Right during game play. The message "Serious Weapons" will appear to confirm correct code entry. Repeat the code to disable it.

Invincibility:
Enter ICHEAT as a name. Then, press A, C-Up, C-Down, B, L, R during game play. The message "Invincibility" will appear to confirm correct code entry. Repeat the code to disable it.

Smart bomb:
Enter ICHEAT as a name. Then, press A, C-Up(2), Up, Left during game play. The message "Smart Bomb" will appear to confirm correct code entry. Repeat the code to disable it.

Restore health, fuel and vehicle shield:
Enter ICHEAT as a name. Then, press Down, Up, Right, A, B, Left, C-Right during game play. The message "Restore H/F" will appear to confirm correct code entry. Repeat the code to disable it.

All artifacts:
Enter ICHEAT as a name. Then, press Up, C-Down, C-Right, Z, Up, Left during game play. The message "All Artifacts" will appear to confirm correct code entry. Repeat the code to disable it.

Kill Adam:
Enter ICHEAT as a name. Then, press B, Left, C-Right, C-Right, Down during game play. The message "Kill Adam" will appear to confirm correct code entry. Repeat the code to disable it.

Black Adam:
Enter ICHEAT as a name. Then, press C-Left, C-Right, A, C-Down, C-Right, Left during game play. The message "Black Adam" will appear to confirm correct code entry. Repeat the code to disable it.

Tall Adam:
Enter ICHEAT as a name. Then, press B, A, C-Up, A, C-Up, A during game play. The message "Tall Adam" will appear to confirm correct code entry. Repeat the code to disable it.

Short Adam:
Enter ICHEAT as a name. Then, press Down, C-Left, A, Right, Z during game play. The message "Short Adam" will appear to confirm correct code entry. Repeat the code to disable it.

Weak Boss:
Enter ICHEAT as your name. Then, press Z, C-Right(2), B, Left, C-Right during game play. The message "Weak Boss" will appear to confirm correct code entry. Repeat the code to disable it.

Mutant alien:
Enter ICHEAT as a name. Then, press C-Down, Up, Z(2), C-Right, Right during game play when a harvester is present to instantly transform turn it into a mutant. The message "Mutant Cheat" will appear to confirm correct code entry. Repeat the code to disable it.

Fat legged aliens:
Enter ICHEAT as a name. Then, press Left, A, Right, Down during game play when aliens are present. The message "Fat Legs" will appear to confirm correct code entry. Repeat the code to disable it.

Dancer:
Enter ICHEAT as your name. Then, press Down, Up, C-Up, Down, C-Right(2) during game play. The message "Dancer" will appear to confirm correct code entry. Repeat the code to disable it.

Suffer mode:
Enter ICHEAT as a name. Then, press C-Down, Up, Z(2), C-Right(2) during game play. The message "Suffer" will appear to confirm correct code entry. Repeat the code to disable it.

Surreal mode:
Enter ICHEAT as a name. Then, press C-Down, Up, Right(2), C-Right, A, Left during game play to make the buildings jump. The message "Surreal" will appear to confirm correct code entry. Repeat the code to disable it.

Additional difficulty levels:
Repeated press Left at the difficulty selection screen to access the "Very Easy" setting or repeatedly press Right to access the "Very Hard" setting.

Hint: Unlimited dynamite:
The box of dynamite on the mountain in level one can be used as often needed.

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