Badland plays similar to Jetpack Joyride. It can be quite hard, but it otherwise fun. The only violence is getting squished or stuck and killed by the scrolling screen. Aside from this, Badland can be enjoyed easily. There's also multiplayer!
"Badlands" is a great game for when you are bored or have friends over. You can play by yourself or with up to four people! I suggest playing on an iPad since it is bigger. On google play it is free and on the App Store
it is $1.00.