We love classic up-the-screen shoot 'em ups (and side-scrolling, and isometric, and first-person...) and this is a great example. Fly your B29 bomber into battle with wave after wave of enemy aircraft and gun emplacements, collect power-ups for awesome firepower and fill the screen with mayhem. Ok, whilst this alone is enough for us to recommend it there's also a rather nice twist - the landscape that your battles take place over is supplied by Google Earth, so you really are fighting over...