The Final Round Cheats for Arcade
Unlock Difficulty Modes:
When you start a new game enter the following codes at the blue screen. You will hear the sound of a bell if the codes have been entered correctly. These codes only work for the Japanese 'Hard Puncher' version.
Unlock Easy Mode:
Press Right, Up, Left, Left, Down, Up, Right, Down.
Unlock Expert Mode:
Press Left, Right, Up, Right, Down, Right, Left, Left.