Just like what has happened with the formerly-released INSPION songs in Taiko and DJ Myosuke's Behemoth, the official video for the latest Taiko no Tatsujin boss song has been posted on a different channel than the usual BanNam Youtube channel.
But that's not all for this story, either...
そしてステムデータ（各楽器のパートがバラバラになっている波形データ）をこちらのINSPION公式サイトにて「無料」公開中！— INSPION (@INSPION_IZENE) 1 dicembre 2018
アレンジ、カバー演奏などご自由にご利用くださいませ！BPMは150（300）です。https://t.co/bNYGYyyD6z
Together with Dairokuten Maou being featured on the INSPION Youtube channel, the sound company has even made the song's stem data available to download on their site for everyone to enjoy, free of charge! As long as such stem data is not used for commercial uses, it's also possible to use it for the production of original remixes/videos, too.
The song's stem data is made available at this page.