KizStudios released a nice little adventure game called Critter Escape to the Amazon Appstore a while back, but it has now arrived in Google Play. In Critter Escape, you pretty much do what the title says. You're a critter of some sort, and you have to escape from a diabolical animal research facility. On the upside, some of the experiments offer helpful powers that improve your chances of escape.
There are two control schemes: a virtual thumbstick (which is bad) and a tap and drag system (which is good).