Gun Metal Cheat Codes
While playing the game, press [F8] to display the chat prompt. Then, type one of the following codes to activate the corresponding cheat function. Note: The codes will not be displayed.
| Result | Cheat Code |
| Invincibility | madmax |
| Full ammo | madmechastriesand |
| Full life | madcosmodna |
| Full shields | madducttape |
| $1,000,000 | madmaxamillion |
| End level | madcastlearrgh |
| Flight mode; A to climb, Z to dive | madrubyslippers |
| Disable flight mode | madbananapeel |
| Turbo mode | madbucketoweasels |
| Disable turbo mode | madgetoutandwalk |