In co-op mode, players can team up with up to two friends to take on the chaos together. This adds a new layer of strategy to the game, as players must work together to take down enemies, avoid obstacles, and solve puzzles.

The gameplay in "Project X: Love Potion Disaster" is fast-paced and frantic, with players controlling their character as they run, jump, and punch their way through the city's streets. The game features a variety of enemies, each with their own unique behaviors and attacks, which players must use their wits and quick reflexes to overcome.

The game's story revolves around a laboratory accident that unleashes a powerful, but flawed, love potion into the world. The potion, meant to make people fall deeply in love, instead causes them to become violently aggressive and obsessive. As the protagonist, players must navigate through the city, fighting off hordes of lovestruck zombies, and trying to find a way to reverse the effects of the potion.

For players looking for a unique challenge, the "Love Potion #35" save file offers a special experience. This save file allows players to start the game with a specific set of upgrades and abilities, making the gameplay even more intense and chaotic.