This game has lots of potential. It just needs some work. The jerky play, the strange physics of your jumping player. Maybe some way to dodge enemy fire. Think Gears of War. I will hold my vote for when this is updated sometime and becomes a featured game :P
Nice idea! If you used it to make a nice and in-depth full out game, with upgrades and challenges and drawn graphics you have an excellent game! 4/5 for idea
Nice defense variation where your own speed comes into play. Selecting the right weapon makes it different from other defense game where you have one weapon then upgrade. Very nice! 4/5