Tilt World partnered with non-profit WeForest -- points Tilt World players earn in the game help buy real seeds and trees to aid with reforestation efforts in Madagascar.
"There's a robot snake that slithers along on wheels, and actually snaps out to bite your hand when the infrared sensor sees you there. You can shake a smartphone to make it hiss and strike, or tilt to use the phone's inertial sensors to steer."
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