In this one, the player is represented by an antiquated rail-gun that can only shoot straight up. That’s OK because the enemy is flying overhead and dropping bombs. The gun has great range and a high rate of fire. You should be able to destroy a lot of bombers. But they will keep coming, faster and faster. It’s the way of these things.
My goal was to create all of the graphics and sound effects from scratch, and still have a decent looking and sounding game.
Check out The Pumper.