Willy's girlfriend has been kidnapped by a UFO and he needs money to buy a rocket and rescue her. To earn the cash, he starts pushing crates in 120 levels of the game. The new level design makes a big difference from its predecessor, Boxxle 2.
The gameplay involves pushing crates onto certain spots, but with a twist - you can only push them, not pull them. This adds a layer of complexity to the puzzle, as crates can easily get stuck in dead ends or block your own path. The game uses passwords to record progress, but there's no battery backup for self-created levels.