There are many things to do in a chao adventure. Your chao will be faced with many tasks, errands, and challenges. Your chao might not always make it through them, but they at least tried so praise them. If a chao picks the wrong treasure chest during the adventure, you're supposed to scold it, but why? It's such a mean thing to do.
Most if not all of the items found in chao adventure 2 can only be found there. Like seeds, and special fruits such as smart fruit or dark fruit to name a few.

When your chao picks the correct chest, you will win 100 luck to his stats called lck. This will come in handy in some of the final chao races.

Once in a while your chao will trip, or do something like singing. When they trip it means they want to go to SA2 and take a nap. When they do something like singing, they are bored and would like to go play with it's friends.

One of the best features is the vmu marriages. Hook up two vmus with chao in them and go to hello. *hook up when it tells you* Your chao will be married, and you might get eggs. What I like about the vmu marriages is that each person gets an egg rather than just one from the garden.