Vertigo is a new fun arcade game for Linux which is based on Ogre3D and BulletPhysics Engine. The game is completely free, open source and cross platform.
You are a probe and your mission is to maneuver your way to the other end of the warp tunnel. Your probe is set with 2 shields to protect from fire and ice drones, but only 1 shield is active at a time. You have to flip shields in time to protect yourself, and you can possibly move left and right to avoid some obstacles.