Moto GP 3 Cheats

Simulation mode:
When playing the game with this mode, remember that you're playing a more sim-like game. Therefore if you lean too far over, your rider will topple over and fall. This mode should only be played once you have relatively mastered gameplay mechanics.

Challenge mode:
There are over hundred separate challenges which will unlock many items once they have been beaten. Items you can obtain range from real-life pictures to hidden characters. Notable hidden characters include Jake Slate from Namco's Dead to Rights. The game has a total of 41 bikes of which 12 are immediately available.

Braking:
You can use front and rear brakes. The rear brakes are optimized when  steering your bike during drift, but it will increase your braking distance. The front brakes is like full/complete brakes. When racing on tracks which require limited braking distances the adjustment of this brake is imperative.

Leaning backwards will cause the bike to under steer and send it into the corner, but leaning forward will cause the bike to lose speed when exiting corners, but your turn-ins will get better.
User Cheat by JerseyGuy

Turns:
When entering a turn you want to shift your weight forward so you can maximize steering, but when accelerating out of a turn your weight should be shifted back so you can give your rear wheels more traction.

Alex Barros:
By winning Challenge 9.

Carlos Checa:
By winning Challenge 7.

Daijiro Kato:
By winning Challenge 6.

Garry McCoy:
By winning Challenge 13.

Hitomi Yoshino:
By winning Challenge 85.

Jack Slate:
By winning Challenge 62.

Jeremy McWilliams:
By winning Challenge 20.

John Hopkins:
By winning Challenge 18.

Jurgen Van Der Goorbergh:
By winning Challenge 21.

Kenny Roberts Jr.:
By winning Challenge 5.

Kevin Schwantz:
By winning Challenge 12.

Loris Capirossi:
By winning Challenge 16.

Max Biaggi:
By winning Challenge 10.

Mick Doohan:
By winning Challenge 15.

Nobuatsu Aoki:
By winning Challenge 91.

Norick Abe:
By winning Challenge 4.

Olivier Jacque:
By winning Challenge 90.

Pere Riba:
By winning Challenge 17.

Regis Laconi:
By winning Challenge 19.

Sete Gibernau:
By winning Challenge 14.

Shinya Nakano:
By winning Challenge 11.

Susumu Hori:
By winning Challenge 1.

Tetsuya Harada:
By winning Challenge 3.

Valentino Rossi:
By winning Challenge 12.

Wayne Gardner:
By winning Challenge 87.

Wayne Rainey:
By winning Challenge 2.

Moto GP 3 Code Breaker Codes