In the game, the player takes the role of the caveman Thor, who has to rescue his girlfriend, "Cute Chick", who has been kidnapped by a dinosaur. To do this, he must travel on his stone unicycle (actually an impossible wheel) through several levels. Each level has Thor moving from the left to the right, avoiding various dangers.

The game is considered ridiculously difficult, but MESHUGGAH beats one loop of the game in just 1 minute and 40 seconds, making it look easy.

Dragonfire is a 1982 video game published by Imagic, developed for Atari 2600, Intellivision, Commodore 64, Apple II, ZX Spectrum, ColecoVision, and more. The objective of the game is for the player to run over a castle drawbridge while avoiding fireballs and other obstacles, and then grab treasures guarded by a dragon who spits more fireballs at the player. Leave the room, rinse and repeat until lives run out. Other obstacles include a moving drawbridge, an archer firing arrows at the player, and a troll inhabiting the treasure room.

The author completes the first 5 levels, after which there is no new content.

BrunoVisnadi improves the previous run by 7.70 seconds, thanks to a new trick and faster routes.

Note: The character should not be confused with Mario, who was originally named Jumpman. Interestingly enough, Glover cited Donkey Kong as inspiration for this game. It is not known whether the naming is a coincidence or not.

This run by BrunoVisnadi completes all 10 stages in under three and a half minutes with carefully planned routes and some close calls with enemies.

This run by dwangoAC uses the hardest difficulty and performs several difficult shots in order to beat the first cycle of the game in under two minutes.