Thread:SecondOpinion/@comment-5688420-20190428110517/@comment-5688420-20190429121326

Get 10 perfect victories in a single arcade run (and at least 5 victories by way of Unter-Arc Surge). After which, upon defeating Ryuho in the final stage, (Awakened) Mikado suddenly appears, interrupts the fight and challenges the player.

Whether you defeated or lost to Mikado doesn't matter, the game is finished either way (though defeating Mikado would unlock a trophy in the console versions)