The game features unauthorized appearances by Nintendo's mascot Mario and the rest of the cast of Super Mario Kart in a port of Street Fighter II.
Low-quality character sprites. For instance, Toad appears more human-like, Koopa Troopa looks small, more realistic, and rather creepy-looking, and Donkey Kong Jr. wears a tank top and shorts instead of a leotard.
Ear-bleeding music. For example, this game's cover of Koopa Beach from Super Mario Kart played on Peach's stage hardly sounds anything like the song it's copied from.
Very slow-paced framerate.
When playing with a friend in 2P mode, it is nearly impossible to KO your opponent, due to its controls and very limited time in each round.
Most of the characters' names are misspelled such as Mario's name being "Mari", Yoshi being "Yossy", and Donkey Kong Jr.'s name as "Donkey" rather than "DK Jr.". This is probably made to avoid copyright infringement but even then, it fails at that.
For some reason Koopa Troopa and Toad are called by their Japanese names (Koopa Troopa is called Nokonoko and Toad called Kinopio)
The game's title is rather misleading, as there are no karts in the game.
The game does feature Mario characters in a traditional fighting game, so there is a small layer of novelty.