Manx TT: Super Bike Twin Cheats

At the transmission select screen, press:

Shift Up
Shift Up
Shift Down
Shift Down

Lean the bike full Left, lean it full Right. Squeeze the Brake and Accelerate.

If you did this correctly, you and your opponents should be riding on Sheep instead of a bike.

At the Course Select screen, hold the Brake while choosing. When you choose your course, you should be in Time Trial mode competing for the fastest lap.