The block hero finds himself in an underground dark world inhabited by undead in Undead Crate Boy. He went there of his own free will to collect wooden crates. The guy did not expect that ordinary boxes can be guarded in such a tough way. As soon as the poor man appeared on the platform, multicolored block undead began to gather from all sides. To fend off them, press the space bar to make the hero shoot left, right and up at the same time. Especially beware of large monsters, do not let them come close. To be able to destroy them as they approach in Undead Crate Boy.