Do the quest ''The Fake in Yellow'' and find the doctor. After you talk to the person that gives you the quest DO NOT collect the mesta. Go back the red teleporter that is wavy and go back to Forest 1. Once you get there you will see 3 Rag Rappies that you can talk to. Go the the background with the waterfall and stand there. After a while a Chao will appear and will give you the ability to download games for your GBA in Pioneer 2. It looks like a GBA on a pole. You will also get the Tails Chao on your GBA.