- 1). Purchase a shiny yellow egg using the rings you have accumulated from normal gameplay. The egg is found in the black market, which you may access from the Chao Garden menu. The egg will hatch automatically when enough time has passed in game.
- 2). Feed the Chao green animals, chaos drives or fruits. These can be found either by exploring the Chao Garden or by buying them from the black market. You can use any character from the Hero or Dark side to feed these items to your Chao. Press "A" in front of the Chao while holding an item, and it will eat that item. In time, your Chao will have a neutral tendency.
- 3). Continue to feed the Chao until it evolves. Once it evolves, it will turn into a Super Sonic Chao.
- 4). Use Sonic to feed your Super Sonic Chao more green animals, chaos drives or fruit. The spikes on the back of the Chao will eventually start to resemble Super Sonic.