Hello,
I haven't tried this yet, but I've now heard the game audio invaders has now become a self voicing application for the IOS. This has a retro feel to it, and from what I played of the last version, getting sighted help in the menu, it was fun. You tilt to aim, but you can switch to touch controle. Ships have a sort of retro sound to them, not quite troopanum, and not quite dark destroyer.
You can get upgrades such as a machine gun and a flame thrower, along with things I probably haven't discovered yet.
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