Mr. Do's Wild Ride

Mr. Do!'s scenario is a roller coaster, and the object is to reach the top. As the cars (and eventually other objects) speed around the track, the player must escape by using a super speed button, or by climbing up small ladders scattered about the track to dodge the hazards. Two icons at the end of the level range from cakes to EXTRA letters or diamonds change upon collecting cherries at the top of each letter. The game is timed, and the timer ticks faster when the super speed button is held down. Collision with a roller coaster car or another object is fatal, knocking Mr. Do! off the coaster and costing a life.

Source: TheGamesDB