the only thing left i can think of would be either a game controller or mouse to touch keymapper.
you can run a PS2 or PS3 bluetooth game controller on android and play Blitz very well (I know, Ive done it) and you can map keystrokes and mouse movements to emulate touch controls. Both require keymappers you can download from the playstore. There are a couple of free ones, but the one i used cost $2.99 and was well worth it.
Look up the app SixAxis