Super Bomberman 5. It appears in Zone 5. The base of the Doll Generator forms a giant impassable 3x3 Hard Block, and the Doll Generator itself is always almost completely walled off with Hard Blocks. It will spawn an additional Doll for every Doll the player destroys, meaning that the player cannot clear the level until they destroy the Doll Generator. The Doll Generator has 4 HP.
Super Bomberman 5 Hudson Soft Guidebook, page 41