I don't normally like action games, but this one has a really high fun factor. It's one of the few that runs reasonably smoothly even on my p.o.s. laptop even when there are a ton of enemies and bullets flying around on the last levels. And although it gets pretty mad and crowded toward the end, it didn't cross the line of making me feel like I was out of control and just mashing buttons randomly. I agree with VascoF that the hitboxes when I stomp attack sometimes seem a little bit off to me, in that I'll take damage if I try to stomp in an area toward a mech's front or rear that I would think should be a clean hit, but it doesn't happen often enough to be a big detraction.