The idea makes a lot of sense, you're a gun and your ammo is your health. The controls feel fine, it's fair that shooting pushes you back, the level design has a couple of flaws (the traps at the beginning feel very "rage game"ish and shooting at soldiers that are on a platform slightly higher than yours requires a lot of wasted ammo), but overall it's fun, it has great visuals and it's a cool concept.