"Happy Wheels" is a popular physics-based game that allows players to navigate various levels and obstacles using different characters and vehicles. As a fan-made game, it may vary in quality and gameplay from the original, but the concept and style remain similar. The game is known for its graphic violence and gore, which may not be suitable for all players. The objective is to complete each level while avoiding traps and obstacles, with the added challenge of trying to keep your character alive. Overall, "Happy Wheels" fan-made games provide a fun and entertaining experience for players who enjoy this type of game.