In Dirt Racer, players must drive their vehicle across a road rally. The car comes complete with a speedometer (in kilometres), a lap counter, and a lap time counter. There are a pre-determined number of chances to complete the game, like in Super Mario Kart and F-Zero. If the player is unable to defeat the game in those number of tries, then the player gets an automatic game over. A yellow smiley face shows up to track the performance of the driver. If it's smiling, then the player is winning. Otherwise, the player is losing the game.
Dirt Racer uses the Super FX chip to provide enhanced graphics.
Source: Wikipedia, "Dirt Racer", available under the CC-BY-SA License.