1.) What units you can get and how?
2.) What triggers the game to crash?
3.) Is the game crash being worked on?
The units I know of are Hydra, kill all the DvD players, Immortal kill Cheese and Bread, Ling is obvious, Medic is kill all the animals behind the locked doors, firebat is toilet paper and lighters, Aberration is the weird growth and rotten food behind the locked doors.