Enter the following codes on the Transmission Selection screen.

Code	Effect
Left, Left, Right, Right, Left, Right, Z, Y, Z	Tantalus bike
Left, Left, Right, Right, Z, Y	Super Bike (Manual Tran)
Up, Up, Down, Down, Left, Right, Z, Y	Manx TT Bike
Up, Up, Down, Down, Left, Right, Z, Y	Sheep Mode
Up, Up, Down, Down, Right, Left, Z, Y	Super Bike (Automatic Tran)
X + Y + Z + L + R	Super Bike (3rd Type)
Y, then allow timer to run out	Grey Bike