Dual-stick shooter with auto-combining weapons. TripleShot + DrillShot = Triple Drills. Add BombShot and IceShot to that: Triple Exploding Freezing Drills. On top of the hundreds of weapon-combos, Breakers Yard also has procedurally generated levels, built-in global leaderboards and a ton of robots to crush. Xbox360 gamepad supported, but not mandatory!
The PumpBot will inflate you until you explode, but if you claim the PumpShot, you'll be shooting projectiles that are inflated to 50% their normal size.