Here is my attempt at a side scrolling shooter. Missiles and bombs can be purchased at the shop. There is no order to completing the levels, but some are more difficult than others. The Aryan Baron level is an optional fight. You must complete all the other levels to unlock the final battle against Hitler's ghost aboard his aircraft carrier, the Graf Zeppelin.
Story: Hitler's aircraft carrier, the Graf Zeppelin, was discovered beneath the Atlantic ocean. Upon raising it from the depths, Hitler's ghost was released, as well as the spirits of thousands of Nazi soldiers. Now, the world relies on you, a sole pilot, to defend the planet from the ghost of Hitler and his minions.
UPDATE: Fixed a bug regarding the background. Also, powered the bombs up a bit and increased the price for missiles. Sorry.