Unlock all of the weapons in the game by entering this code at the Main Menu.

Enter: C-Up, C-Up, C-Up, C-Up, C-Down, L, C-Left and then Z.

*NOTE: This code will work for Multiplayer and Thrash Modes. It will not work for the Big Game.

Attack with 4x damage by entering this code at the Main Menu.

Enter: L, L, R, R, L, C-Up, C-Right and then Z.

*NOTE: This code will work for Multiplayer and Thrash Modes. It will not work for the Big Game.

Press C-Right, C-Left, Z, L, R, C-Up at the menu screen.

Press C-Up, C-Left (x2), C-Right, L, R, C-Down, Z at the menu screen.

Press Up or Down at the bike selection screen.

Press Z, C-Left, C-Down, C-Left, Z, L, R, C-Down at the menu screen.

Enter a code below at the menu screen to play on its corresponding level.

Level   Code
2       Right, C-Right, Z, Right, Left, C-Up, C-Left, C-up
3       Right, C-Right (x3), Right, C-Left, C-Down, Z
4       Right, C-Right, C-Down, C-Left, C-right (x2), Z, Left
5       Z, C-Right, C-Down, C-Left, C-Right (x2), Z, Left

Press C-Down, C-Right, C-Up, C-Left (x2), L, C-Left at the menu screen.

Press C-Up, C-Left (x2), C-Right, L, R, C-Down, Z at the menu screen.

Alternately, complete all races in "Big Game" mode.

Enable Thrash mode. Then press C-Up, C-Left (x2), C-Right, L, R, C-Down, Z at the menu screen.

When you see a cop waiting on the shoulder, pull a wheelie and run him over. This will knock him out instantly.

Hold L after falling off your bike to remain on the ground.

Hold A at the beginning of a race.

Drive on the grass in "The Beat Down". Police will ignore your rider and arrest everyone else.

After making a sharp left-hand turn midway through the city in race 3, you will see a building with a hole cut out of it. Drive through the hole.

On level 5 track 4, turn around at the start of the race and go backwards. You will see a dirt road on the right. Take that path, and make a right on the end of the dirt path until you merge on the regular track once more to finish the race.