Use the "Hover Bike" trick, then go into the first freestyle track. Go to the end of the track with the tower, turn around and go full speed into the center ramp. Once in the air, hold CTRL until you land in the stands. Turn to the RIGHT and go slowly out the corner of the stands. Once you leave, hold CTRL until you land. You can now ride around outside of the stadium.
Note: The following moves do not require a Gamepad.
MOVES - BUTTON SEQUENCE Lookback - STUNT B + LEFT twice. Fist Punch - STUNT B + RIGHT twice. Prayer - STUNT B + LEFT + RIGHT or vice versa. No Footer - STUNT B + LEAN BACK twice. No Hander - STUNT B + LEAN FORWARD twice. Twist - STUNT B + LEAN BACK then LEAN FORWARD. Windsurf - STUNT B + LEAN FORWARD then LEAN BACK. SUPerman - STUNT A + LEAN BACK twice. Nothing - STUNT A + LEAN FORWARD twice. No-Footed Can Can to LEFT or RIGHT - STUNT A + LEFT or RIGHT twice. Barhop - STUNT A + LEFT + RIGHT or vice versa
Select "Quick Race" at the main menu and choose any track. While riding, hold Page UP (Eject). Your rider will fly about 30 or 40 feet higher than normal and fall to the ground. Keep holding Page UP and your rider will bounce on or close to the ground and continue to fly.