You drive a train that transports coal. You can choose between three different trains: one's faster, one has a better balance and one's accelerating faster. Once you've completed all the levels, you can also drive the supertrain, that combines the best of all three other trains. If an exclamation mark appears, you'll have to slow down. Collect all yellow icons, that represent achievements. In the shop you can upgrade your train with the money that you've earned.
Use the left arrow to lean back, the right arrow to lean forward. Press the up arrow to advance and the down arrow to reverse.