Chao Adventure is a minigame that can be downloaded to the Dreamcast's VMU from Sonic Adventure. It uses Chao from the player's Chao Garden in Sonic Adventure. The game allows the you to level it up by doing various tasks. There is a sequel to this game in Sonic Adventure 2, called Chao Adventure 2. When Sonic Adventure was Adventure DX, Chao Adventure was replaced with the Tiny Chao Garden.