You asked about them. Begged for them. You demanded them. SO.. here they are! TargetQuake cheats. From the readme.txt:

Hey cheaters! Just replace the old TargetQuake progs.dat with this one. You'll have all the weapons, a Partner in Crime, invincibility, and if you hold up and jump at the same time, you'll fly upwards (so when you fall in that lava that can't kill you, you can get out). Happy now!?

Hey! Slow pokes! Hamza "BigImp" Kubba already found the Super Duper Secret!

Never knew that the marine's real name is Ken Masters, eh?

Yes, you can do a fireball in TargetQuake, just like in Street Fighter 2.

The Avatar's Abode has been hit like times since February 96