Loved it because of the levels, guns, and arena mode. Got to wave 30 something before having to fight the MK32 GOL3Ms(Or something similar) alone with maximum stats, as he killed off all six guys I had with me, before killing me next. Only thing about it is that friendly characters always try to shoot the GOL3Ms instead of whacking it with their gun or bare hands. My comp can run most of the waves with very little lag on high settings, but even though it happens rarely I always put it on medium.