Here are some Cheat Codes of Terminal Velocity
Not Sure exactly what all of them do though they should be self explanatory.

TRIGODS : Invinsible
TRISHLD : Replenishes Shield
TRINEXT : Warps to next level
TRIHOVR : Hover Pad
MANIACS : No cockpit, and Afterburners nad I guess speeds game up
TRSCOPE : ??? - p pauses the game
TRIBURN : Afterburner
TRFRAME : Frame Rate
3DREALM : Smokin'
TRIFIR1 : weapon 1
TRIFIR2 : " 2
TRIFIR3	: " 3
TRIFIR4	: " 4
TRIFIR5 : " 5
TRIFIR6 : " 6
TRIFIR7 : " 7 
TRIFIR8 : " 8
TRIFIR9 : " 9
TRIFIR0 : " 10
				Type by Sanny Yoon (Syoon1@aol.com)