Use these login names:

Flamdwyn Aiobhell Unlimited ammo
Monty Barrymore Unlimited ammo and invulnerability
Lyn Wins Unlimited ammo, invulnerability, and enables
other cheats


Other Cheats:

SHIFT-CTRL-ALT-TAB Speed warp
ALT-V No fuel
SHIFT-V Refuel
ALT-T Overtorque toggle
CTRL-T Terrain-following toggle