In the new game Endless Tunnel Unblocked you will go to a three-dimensional world and help a red cube travel. Your character discovered a long tunnel and decided to explore it. After jumping into the tunnel, your cube will begin its free fall gradually gaining speed. On the way of its movement, various obstacles of various sizes will constantly appear. You will use the control keys to move the cube in different directions. This way you will avoid collisions with obstacles and get points for it.