Bought this at Wal-Mart last week and just beat it last night.
The mission with taking the tribe leader through the village took me 3 days to complete. I was not expecting that at all. I wanted to bust the game in frustration.
It's easily one of the best games I've played in a very long time. Borderlands meets Left 4 Dead. Now I need something else to play. Might to Wal-Mart tonight to see what cheaper $20-$30 games they have.