Quake 2

This level set is a little annoying, but there is a trick so you only really have to do 1 level. The first level can be done in 12 seconds watch from 5:20 in video 2 to see what you have to do. Or from 14:00 in re-cam. Before you jump out the side of the window, keep on going into the room, you'll see a BFG!!!!!! (Once you get the BFG start saving Cell ammo, you can kill the last boss in 3-7 hits with it as long as you have quad damage)

For the next level watch from 5:40 on video 2, and 14:19 on re-cam. when video 2 is at 6:10 and 14:55 at re-cam you will see they will rocket jump into the air, and hit a trigger that will blow up the door, making you skip the rest of the levels. What happens is there was a lost switch that was never taken out of the game, and they hit it! I suggest you watch it from both first person and re-cam.

Level Set: Power Station
power Station 1
Power Station 2
(There are more levels but a trick to open the door elimanates the need to go to the other areas. Just read above!)