Up 'n Down is an action-packed game where your goal is to drive around a twisty course and collect all the colored flags. You can jump over gaps and even land on top of other cars, which will destroy them and give you points. Additionally, collecting balloons and ice cream cones will reward you with bonus points.
As you progress through the levels, things get more challenging. There are dead-ends and gaps in the course, as well as a vehicle carrying a flag you need to reach. You'll need to time your jumps perfectly to catch it. If you're hit by another car or go off course, you'll lose a life. The game also features two-player mode, where players take turns playing against each other.