This mod adds a lot more functionality and features to the Chao System, extending the Chao World into a bigger and fuller game. The most popular mod for Sonic Adventure 2 for the Chao community is the mod pack by DarkyBenji called Chao World Extended. Chao World Extended also add new contents, brings back unused contents and adds a variety of ways to get new kind of chao! Which is the best mod for sonic adventure 2? Frequently Asked Questions Are there mods for the chao garden in sonic adventure 2?Ĭhao World Extended is a mod for the Chao Garden in Sonic Adventure 2 that can change the system of the Chao Garden depending on what you choose.