Competition Mode
During gameplay, press Select, choose the second option, and hold Left and A on Controller 2 and Left on Controller 1. Press A on Controller 1 and give your ID and password, then answer "Yes". The game will switch to a competition mode.
Stage Skip
During gameplay, press Select and choose the second option from the menu that appears. Next, hold Right, A, and B on Controller 2 and Right and B on Controller 1. Press A on Controller 1 and you can advance to the next stage.
Start With 3 Million Yen
First, go bankrupt. Then, on the game over screen, press A & B at the same time on both controllers. You'll go back to the title screen, start over and you'll have 3 Million Yen this time around.
View Ending
At the title screen, press and hold Down + Left + A then press Start. Then while the screen is black, press B, A, A, A, B, A, A, A, B, A, A, A, A, B, B, A, B, A, B, B, A, B, B, A, B.
Competition Mode...