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Chao World is the world of the Chao that can only be visited in Sonic Adventure 2 and its remake. According to the map in the game, it is located outside of Central City. It can be entered by obtaining a Chao Key from the Chao container during an action stage. Afterwards, it can be visited by selecting it on the map with a character of the player's choice.
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In the Dreamcast version, if any Chaos Drives or animals were collected and not used in any Chao Garden, and the player exited and re-entered, they would be gone. In Battle, they stay in the gardens for a much longer period of playtime.
|The lobby is the main room of Chao World. In the center is a warp panel that can take the player back to the real world. In front of the player is the Chao Garden. Opposite of the Chao Garden is Chao Kindergarten. To the left is a staircase that leads up to the Hero Garden. To the right is a staircase that leads underground to the Dark Garden.
|The Chao Garden is a the basic garden where the first two Chao can be raised. It is also the only place that can be visited upon the player's first time in Chao World. In the Dreamcast version, it has two fruit baring trees and a VMU port. Behind the waterfall there is a cave that will take the player to the Chao Races. In the GameCube version, there are now three trees. In place of the VMU port, there is now a GBA port. The cave behind the waterfall is now dubbed the Chao Cave. Besides races, it can now take the player to Chao Karate.
|The Chao Kindergarten will be available after the player hatches their first Chao egg. In the Dreamcast version, there is a Chao Doctor, a classroom, and the Chao Principle. In the GameCube version, the Black Market and the Fortune Teller are added in.
|The Hero Garden will be available after the player raises their first Hero Chao. It is much larger than the Chao Garden. In the Dreamcast version there will be an egg waiting in the garden. The VMU port is also decorated to match the theme of the garden. In the GameCube version, there are two eggs rather than one. The VMU port is replaced by a GBA port. The layout of the garden is also different.
|The Dark Garden will be available after the player raises their first Dark Chao. It seems to be the largest garden in comparison to the other two. In the Dreamcast version, there will be an egg waiting in the garden on the first visit. The VMU port is also decorated to match the theme of the garden. In the GameCube version, there are two eggs rather than one. The VMU port is replaced by a GBA port. The layout of the garden is also different.