The player must solve puzzles using these boxes, which can stay on Qbby or be detached.

Crowns are placed in every level, and can be collected for an added reward.

introduces different kinds of boxes, which appear in certain levels and have different effects depending on the type.

[6] The game also introduces Qbaby, a small box that must be escorted to the goal in certain levels.

[7] After beating the game, Challenge Worlds unlock, featuring more difficult levels.

[6] CJ Andriessen of Destructoid also enjoyed the Qbabies, but complained that the power-up they give Qbby were underused.