BoxBoy! is a series of digital titles developed by HAL Laboratory and released over the Nintendo eShop for Nintendo 3DS. The series stars a box named Qbby, and involves the player having to use his power of spawning additional boxes to solve puzzles.
The concept for BoxBoy! was created in 2011 by HAL Laboratory employee Yasuhiro Mukae, during development of Kirby: Triple Deluxe and Kirby and the Rainbow Curse, and formally entered development in 2013. The game was developed with a more simple aesthetic design and gameplay elements, reminiscent of Game Boy and Nintendo Entertainment System games. The series protagonist, Qbby, was designed with a functional mindset, as it made more sense visually for a box-shaped character to create boxes.
After the release of the first game, the series has since seen another release, with the third game being released alongside a collection. An amiibo of series protagonist Qbby was also released with the collection.