Unlock Moon Zone
Beat the game with all 7 Chaos emerald's and play Sonic's X-Zone. After you defeat him, you will unlock the moon zone.
Fly high:
Play as Sonic (recommended), Miles, or Knuckles. Go to Zone 1 Act 1 and go to the area where the first loop is located. Stand on the sliver of land, then charge a Spin Dash for twenty seconds. Dash to the right and hold Down/Right. You will go down the hill (not getting all the rings). Eventually, you will go so fast that you will leave the screen. Sometimes it does not launch you off the cliff at the end.
