Tyrannosaurus Wrecks is the name of the evil god of destruction that an old sage imprisoned within a book with other monsters in Dragon Quest IX but broke free and released every single one of them from page first.

He can be found and fought only in the most advanced grottoes in the game, being the second-to-most powerful extra boss that originated in this game. According to the bestiary, it used to belong to a group called the Hackson Five, and is the most merciless of them all, even more than his sister who eliminated three of the members of this group.