Today's Kindle Fire app is: Hot Donut.
This is a very Sonic-like rolling and jumping over hills game. It's ... meh. A fun distraction, but I'm probably glad I didn't pay for it. It takes 2 fingers for at least 1 action I've run into, so I can't hold the device in 1 hand and play with the other, I have to put it down. Like I said: Meh.