BoxBoy! is a series of puzzle-platform games developed by HAL Laboratory and published by Nintendo. The series centres around Qbby a square-shaped character who can produce a string of connected boxes. The boxes are used to overcome obstacles in stages that Qbby must be guided through. The first game BoxBoy! released on January 14 2015 in Japan on the Nintendo 3DS. Its sequel BoxBoxBoy! was released for the Nintendo 3DS in 2016 with a third game Bye-Bye BoxBoy! in 2017. A physical compilation of the first three games HakoBoy! Hakozume Box was released in Japan. A fourth installment BoxBoy! + BoxGirl! was released for the Nintendo Switch in April 2019.