How to unlock Neptuneman and Big The Budo in Kinnikuman Muscle Grand Prix 2 (arcade version)

[LEGENOARYNINLIA]

Long title, for those sweet sweet hits on Google.

To unlock the two extra characters, go the Test menu, choose Game Options and then while highlighting Game Difficulty input this:

組・打・↓・必・↑・G・↓・G・↑・打・組・↑・打・↓・G・↑・必・↓

(Throw, Attack, Down, Special, Up, Guard, Down, Guard, Up, Attack, Throw, Up, Attack, Down, Guard, Up, Special, Down)

A box should appear to confirm that Neptuneman and Big The Budo are now selectable. Enjoy!