I found the problem with the hamburger. Under event 10, you need to place the set angle action into it's sub-event where the space key is pressed. The way it is now it's setting the angle of already existing burgers instead of the one being created. Just remember, if you're creating an object, always place the actions setting angle/size/whatever in the event where it's created. Newly created objects are always picked in the event they're created in.
Also, I played your game, and I kind of like the style. A couple of things about the gameplay, though. There wasn't actually anything to shoot with the burgers, which makes them kind of pointless. The second thing is that I think the jump power should be lower, but you should set a jump sustain so you can have variable jump heights.