Nice little fun game.
I love your character design, it's cute. The other hand drawn art is also pretty nice, only the ground is a bit less cool but still fine.
The shooting mechanic works fine and fit the jam theme. Adding more speed to the push back of a shot is also pretty neat, although it's super easy to fall off the level. It could be a tiny bit more forgiving for my taste. But the shooting and the push back felt really good and powerful.
Good jam entry. Well done!