Dr Carter and the Wheels of Salvation

Dr. Carter is trapped at the bottom of a gem mine and eventually the whole mine will slowly fill itself with lava from the ground. Help Dr. Carter escape this deathtrap, while collecting those valuable gems.

Each level is filled with huge gears (the Wheels of Salvation), which allowing you to reach the surface.

When you are under a gear, just jump and you will stand there (even upside-down) until you jump again. Now you have to jump from one gear to another, until you reach the surface. There are also teleporters for shortening the way (or prolonging it, as they are two-way teleporters). While you are underway, you can collect the gems, which award you extra points, but they are not required for completing a level.

Once you reached the surface, you continue with the next level; or when the lava gets you, you lost one of your three lives.

The further you progress through the levels, the deeper the mine will be and the faster the lava will come.