Bonecrusher

Bonecrusher is an arcade game where you control a skull who has to try to pick up as many bones as possible. The problem is that those bones are right under a huge wall with spikes that can stick you if you're not quick enough.

To move your skull to the left or right just tap the sides of the screen. And that's pretty much all you have to do: move from side to side while collecting bones and dodging spikes, until one of those spikes finally impales you and it's game over.

As you continue to play and get good scores, you'll unlock new skulls. To start you have just one, as usual, but later on you can unlock another dozen or so that give the game some variety.

Bonecrusher is a pretty addictive arcade game that stands out precisely because of its simple plot and gameplay. And the minimalist graphics are great, too.