Get Invisible Riders
Get the cheat screen by holding L + C-Right + C-Down and press A. Then put in the code INVISRIDER.

Get Stunt Bonus
Get the cheat screen by holding L + C-Right + C-Down and press A. Then put in the code SHOWOFF.

Get Big Head Mode
Get the cheat screen by holding L + C-Right + C-Down and press A. Then put in the code BLAHBLAH.

Get All Stunts
Get the cheat screen by holding L + C-Right + C-Down and press A. Then put in the code TRICKSTER

Get Mirror Mode
Get the cheat screen by holding L + C-Right + C-Down and press A. Then put in the code YADAYADA

Get Night Mode
Get the cheat screen by holding L + C-Right + C-Down and press A. Then put in the code MIDNIGHT

Get Small Head Mode
Get the cheat screen by holding L + C-Right + C-Down and press A. Then put in the code PINHEAD

Beat This Enabled
Get the cheat screen by holding L + C-Right + C-Down and press A. Then enter PATWELLS

Show Developer Photo
Get the cheat screen by holding L + C-Right + C-Down and press A. Then enter UGLYMUG

More Cheat Codes
Enter any of these codes at the cheat screen.
IMGOINGNOW - Debug Enabled
ROTCOLS - Odd Color Enabled
MOWER - Invincibility Enabled
XLURIDER - Transparent Rider Enabled

Get Hill Climb Mode
Get 1st place on the gold round in amateur season

Get 3D Mode
Get 1st place on the challenge round in pro season

Get Soccer Mode
Get 1st place on the silver round in novice season

Get 1984 Excitebike
To access this you must finish the tutorial mode

Back flip
Bottom yellow button then up left right down

Shortcut in Lefty's Mill
In Lefty's Mill on the 2nd full 180 turn, turn right before you make the turn into the mill, cut through the grass on the opposite side of the white railing (right side of track). after two small jumps there should be a wooden ramp. if you jump it high enough, you should land on a wooden, narrow track. Follow it, and at the end there's another ramp. you'll jump and land back on the track without having to go through the mill!!!!

Shortcut in Shortcut in Lefty's Mill
Like in the "shortcut in Lefty's mill", you go on the grass and jump the wooden ramp right before you go into the mill. But if you didn't jump high enough, you'll see theres a side entrance ( which you'll have to go through ). when you go in, there will be a metal railing in front of you. Hit it so you fall. You will be on the wooden narrow track as if you made the jump.

Shortcut in Mountain Quarry
In Mountain Quarry right after a turn, there are three big jumps then one smaller then, a long, wide turn ( it might take you a couple of laps to find it). On the last big jump, jump low because right before the small jump, turn left. you'll go through a tunnel which cuts straight across the wide turn