Dragon Quest Heroes: Rocket Slime is an action-adventure video game developed by TOSE and published by Square Enix for the Nintendo DS handheld video game console. It is the sequel to Slime MoriMori Dragon Quest: Shōgeki no Shippo Dan for the Game Boy Advance. It was first released in Japan, and later in North America. It is a spin-off of the Dragon Quest series. Rocket Slime stars the common enemy and mascot of the series, a Slime, this one in particular being named Rocket. Rocket lives in a town called Boingburg, inhabited by other Slimes, each one being a type of Slime species found in the series. There are no humans in Rocket Slime; instead, its world is inhabited by Slimes and other enemies from the series. It features two forms of gameplay; the first being an overhead style, where the player maneuvers Rocket around a variety of stages, and another where the Schleiman Tank must do battle against an opposing tank, firing ammunition found throughout the first portion of the game.