Enemies Flash Yellow
This little code will make one enemy flash yellow.
Weapons Required: Tranqualizer, Nuke, and the Sunfire Pods.
Step 1: Locate an enemy tha can be tranqualized.
Step 2: Tranqualize it.As soon as it falls to the ground,charge up and fire the
nuke. The Nuke energy ball must explode before the enemy recovers.
Step 3:Wait one second,then toss a sunfire pod on/at him.
Note: If done succesfully,than the enemy will not blow up but flash yellow once.
Then, whenever the enemy either attacks or walks he will flash yellow.
Jump On Air
Fall off of something and press the jump button and you will jump on air.
Use the charge dart rifle to stun them, then pull out something with a bigger punch and kill them with it. This way works much easier because they can't fight back and knock you off the many edges in the level. Or use the scope on the plasma rifle and snipe them before they can shoot at you. On the bigger and smaller enemies, the flame thrower works well by itself too.
Two Players In Single Player Mode
Obtain the warp cheat for the desired level to be played. Then, enter the multi-player options and set the game to no time limit and no frag limit. Begin a regular multi-player match, then pause the game. Return to the cheat option to advance to the desired single player level. Resume the game to play with unlimited health, due to the no frag limit setting. Note: Portals can not be used when playing in this manner.