VIRTUAL BART CODES FOR THE SUPER NINTENDO

Fly In Any Side scrolling stages.
Press Up, X, Down, B, L, Y, R, A with the 2nd controller during gameplay. 
Remember to do it as quickly as possible. 

Pigs fly!!! 
Hold L and R in the pig stage to float through walls. 

Skip Stage 
To skip the current stage, press Start on the 2nd controller during gameplay.