The chainine is a recurring monster in the Dragon Quest series, first appearing in Dragon Quest VIII. It is a bulldog monster that uses the chained collars it carries around to trap travelers.
Chainines are monsters with the appearance of bulldogs known for the spiked golden collars they carry around with them, which are attached to their waists by chains. The hounds ensnare unfortunate adventurers by hurling their collars to trap them, then finish them off with a well-aimed strike from their spikes. They wear iron and leather armor over blue trousers and don spiky blue skullcaps on their heads. Their Japanese name, wonder fool, is a play on the word "wonderful" and the word "wanwan" (わんわん), the onomatopoetic term for a dog's bark.