So far this is only a test. I have yet to put in enemy health, respawning, a scoreboard, etc (I may or may not have multiple player weapons and powerups). However, i have created a decent AI enemy. He will sense if you are aiming at him and sidestep, aproach the player when appropriate, and stop to shoot once in a while (all within reason). The sprites I used so far are from Doom and Corridor 7 and I used a modified version of mattenator's Space Age 3d Engine. Enjoy.