I just read the description of this game which sounds kind of marginal, but am wondering if instead of using your fingers or hands to tap, if you could use your feet? That might make it an acceptable exercise game.
I bet you eat your meals using your feet as well
As soon as I read "let's tap", I pictured this:
This looks foreign to me... Car Repair, ahhh!!! *runs away in fear
but anyway, Lets Tap looks good to me. Might rent it.