The game became a famous Internet sensation due to its unfinished, glitch-ridden nature.
- The enemy player has no artificial intelligence, meaning that the races are pointless, since the player always wins. In the game's original release, the enemy doesn't ever start the race. In a later update, it participates in the race but stops short in front of the finish line.
- Lack of hit detection means that everything in the game can be driven through, including houses, trees, lampposts, humans, the opponent, and the truck even passes under a bridge instead of driving over it.
- This also lets the player drive outside of the game's boundaries, into the nothingness surrounding the level.
- Since the game cannot simulate gravity, the player can easily drive up vertical cliffs.
- The developers forgot to limit the reverse driving speed, meaning that it's possible to accelerate backwards almost infinitely.
- The roads often clip through the ground.
- The truck's rear lights are floating some distance away from the vehicle itself.
- One of the levels causes the game to crash, which was fixed for a later update (it's actually one of the other race tracks, but in reverse).
- The game has a list for high-scores even though no scores can be attained.
- The lights representing the checkpoints on the "Ultranav" box don't always correspond to the real checkpoints, and the game's timer reaches outside of the box's frame.
- The winning screen is written in broken English: "You're winner !". This was later also corrected to "You win !"
