Wow this is awesome! Love the claymation art style, very unique! The gameplay is simple and very easy to understand, so good job there. Difficulty curb does ramp up pretty hard, but I'm sure if you really spend some time learning the terrain mechanics it can probably be kind of easy. Upgrades felt good except for the split shot. Maybe for the split shot upgrade you could try having one projectile shoot straight and the other projectile go randomly in a cone? Something to think about. A lot of fun, very charming, great job!