It's not everyday that you find a completely free non-ad riddled game that is well polished and fun, but that's exactly what Gyro is. I ran into this game from a recommendation on the sub-Reddit AndroidGaming which I highly recommend for those interested in chatting about Android game news and new releases. To my surprise Gyro is addicting and simple, which is a perfect recipe for an awesome mobile game.
In Gyro you control a while that is sectioned into three colors: orange, magenta, and cyan. Small circles are thrown at the wheel and you must spin it in either direction to match the color of the incoming circle to the color of the wheel. As the game proceeds the speed with which you are inundated with the onslaught of circles and the complexity of the incoming combinations becomes faster and greater, making your defeat inevitable. For each incorrect circle/wheel collision that section of your wheel is damaged. If any of the three sections runs out of health it's game over. There are health and various other upgrades to help keep you alive and build your score. A simple elegant challenging experience.
It's hard not to recommend a game that is cost and ad free, but Gyro seals the deal by presenting a great time killing experience that is hard not to love. I'd recommend anyone reading this check it out, I guarantee it'll be a hard game not to like.