Bye-Bye Boxboy! is a puzzle-platformer developed by HAL Laboratory, released in 2017 for the Nintendo 3DS and the third entry in the Boxboy series. Players control Qbby, a box-shaped character who must navigate 18 worlds filled with hazards such as Black Smoke, powerful winds, and water. The core mechanic centers on generating boxes to overcome environmental obstacles, now expanded with four distinct powers introduced through collectible characters called Qbabies. The Boxrocket reaches elevated switches, the Bombox destroys sections of the environment, the Warpbox enables teleportation, and the Remotebox allows levitation. Completing stages rewards players with costumes, comics, music tracks, and access to challenge worlds. Additional costumes tied to Kirby series characters are unlockable by tapping compatible amiibo figures. The game accommodates both newcomers and returning players through its structured progression across increasingly demanding puzzle stages.
