6th Anniversary High Difficulty

I thought it would be someone like Kikuo-san (who makes high-difficulty songs for CHUNITHM) or Uchidaizu-san (who composes high-difficulty tracks for rhythm games and got into Proseka NEXT), but it's actually Kuroma-san!? Wait, is that really okay?? Still, it's a high-difficulty song, but the APPEND is surprisingly low... (I can't play it though). For now, I just want to clear Master quickly. Connecting through Proseka, I want to hear a chiptune sound collaboration between Kuroma-san and Uchidaizu-san...