Chao Adventure
aka: A-Life (VMU)

Unlimited energy:
Change the Chao's name to 1234567 to get unlimited energy during battles. 

Level skip:
Obtain a Chao from Sonic Adventure. You will be asked for the next area when your Chao reaches the end of the current level. Select the desired location, then immediately press Mode. Then, press Mode(2) to return to the Chao Adventure screen. Allow the Chao to start walking and it will allow you to select the next area. This may be repeated as needed. 

Hint: Battle two of your own Chao:
When battling two of your own chao, its not fatal. Choose battle and the game will load the two Chao onto the VMUs. Then, disconnect so you will only fight a clone of your Chaos. 

Hint: Change shape and color:
If you give a Chao a lot of the same types of animal it will evolve. For example, animals with a yellow background will result in a water chao. Give the evolved Chao a different set of animals (for example, red, purple, or green) and it will eventually change shape and color again.

Chao Puzzle:
Insert the VMS into a controllers first socket. Plug the controller into port D. A Chao Puzzle will appear on the VMS screen after selecting a file. (It does not matter if a Chao file is available).