Dragon Quest: Young Yangus and the Mysterious Dungeon

Dragon Quest: Young Yangus and the Mysterious Dungeon[a] is a prequel and spin-off to Dragon Quest VIII, developed by Cavia and published by Square Enix as part of the Mystery Dungeon series.The game centers around the character Yangus, who is a main character in Dragon Quest VIII, as a child.[4] Described as a “plump bandit”, he becomes involved with his father Yampa's gang of thieves when a mysterious jug is brought home.[2][5] Though instructed not to touch the jug, Yangus does, and is sucked inside the bottle into another world called “Bottle Land”.[2] Red, a female bandit from Dragon Quest VIII also appears in this new world, as well as Morrie, Torneko, and a new character named Poppy, and each begins to explore the dungeons of this new land.

Source: TheGamesDB