Artist's commentary
This kind of stuff happens, doesn't it.
I panicked a bit because I thought it was broken. Once we waited a bit and then plugged in the power source, it started up normally, so we were saved.
The song, by the way, was " Chase the Light ", the opening to Kaiji. The previous kappa-san had also done a death metal rendition of " Gaichuu ", a song by Utsu-P-san, so it was amazing in all sorts of ways. I thought it was incredible they could sing in those voices so precisely.
Gaichuu = "Parasite/Vermin/Noxious Insect"