Instructions
Enter the Chao Garden in which the Chao you want to evolve is located. Time in the garden only passes if the player is inside. The time freezes when the player is in a different Chao Garden, playing a different game mode or has the system turned off. It is impossible for a Chao to evolve if the player is not in the garden.
Press "B" to grab a tree. Move the control stick to shake the tree. Fruit eventually starts to fall out if there is ripe fruit in the tree. It is difficult to tell if the fruit is ripe by looking at the tree. If nothing falls out after approximately five to 10 seconds, the tree usually does not have any ripe fruit.
Pick up the fruit and take it to the Chao. Press "B" again to give it the fruit.
Repeat steps 2 and 3 until the Chao refuses to eat.
Pick up an animal or Chao Drive walking around in the garden. Anything walking around the garden without a yellow, red or blue ball above its head is an animal or Chao Drive.
Put the animal or Chao Drive down next to the Chao. The Chao gains a slight stat increase when you do.
Repeat steps 5 and 6 until the Chao makes a cocoon. This indicates it is making its first evolution.
Repeat steps 2 through 7 after the Chao emerges from the cocoon to start the second evolution. The Chao does not make a second cocoon for this evolution. The appearance of the Chao changes gradually as you give it more fruit, animals and Chao Drives until it completes its second evolution.