This is awesome that you three could make this in so little time. I think this could be developed further in a number of directions. Like, keeping with waves, like a Smash TV, which would mean more powerups. Or as I was playing it, I was thinking Devil May Cry, which would mean more exploration/story. Whichever way you go with it, you have a really good start here. I liked both the 3D/2D artwork. The music/sound were good. Kind of a weird thing was happening when I was way up in waves where the music was muting and the sound of the guns was weird, like a thunderstorm, kind of cool in its own way. Also, the Rage could use improvement. Maybe change it so the player doesn't lose control with it and also add a cooldown after it expires. Overall, great job with the game!