Running's good for you. Running and jumping between buildings, not so much. I guess if you're trying to save the world, and it's free, and an app, it's okay. If saving civilization seems like too much pressure for a Friday, you could snuggle up with some Tetris, or make a panda puzzle friend. Plus, if you're going see any kids this holiday season, you might as well load up the ol' Android with a kid-friendly app deal of the day.
Tetris, you are a cruel mistress. You don't try to dazzle me with 3D renderings of mythical creatures and window-rattling explosions. Instead you get inside my head with your geometric shapes and mesmerizing soundtrack. It doesn't matter that I've purchased you on every gaming platform I've ever come in contact with. I can't quit you Tetris. I just can't. Dropped from $8 to $3. [Appshopper]
Who doesn't love pandas? Well besides Brian. Instead of boring us with sad panda facts, the slingshot-based puzzle game has 36 levels of fun to help us forget the plight of the endangered species. If pandas bum you out, or just piss you off, you can play as a gorilla or a chinchilla. Dropped from $1 to Free. [Appsylum]