The Prototype campaign is short (roughly 8 hours). The "Trainer Fling" extends the life of the game by transforming combat into a chaotic physics simulator. Instead of spamming Critical Pain devastators, you can challenge yourself: Can I clear a military base using only thrown trainer soldiers? (Answer: Yes, because a hyper-velocity soldier will pierce an armored personnel carrier).
Gameplay of Alex Mercer throwing a tank across the skyline, then cutting to a trainer menu. prototype 1 trainer fling
: Users have reported occasional lag or errors in specific missions when EP (Evolution Points) cheats are active. The Prototype campaign is short (roughly 8 hours)