All gold medals: 

Press Down, Up, Left, Right, Triangle, X, 
Square, Circle at the title screen (the 
phrase "Cheater's Never Prosper" will be 
spoken and text will appear to confirm 
correct code entry). 


Level select: 

Press Down, Up, Right, Left, Triangle, X, 
Square, Circle at the title screen (the 
phrase "Cheater's Never Prosper" will be 
spoken and text will appear to confirm 
correct code entry).

by unknown


In the barn level go to the cow that is by the 
barn. Run into him seven times [not on the target],
then go to the other cow (the one that is farthest
from the barn and hit him nine times). The phrase 
"cheaters never prosper" will be said. You will get
every copter and evey secret level. It might be 
hard but its really worth it.

Submitted by bob at hotmail.com