Heavy Barrel 




Start at Stage 2

At the Title Screen, hold Up, R, and A and press Start to start at Stage 2.




Start at Stage 3

At the Title Screen, hold Right and A and press Start to start at Stage 3.




Start at Stage 4

At the Title Screen, hold Down, Right, and A and press Start to start at Stage 4.



Start at Stage 5

At the Title Screen, hold Down and A and press Start to start at Stage 5.




Start at Stage 6

At the Title Screen, hold Down, Left, and A and press Start to start at Stage 6.



Start at Stage 7

At the Title Screen, hold Left and A and press Start to start at Stage 7.




Play as player 2

Choose a two-player game. Start the game and let Player 2 get defeated. 
Don't press A, and keep playing as Player 1. When Player 1 loses his 
final life, switch to Controller 2, and then play as Player 2.