Soul Hackers Superboss 

Aww, thank you. I commissioned it a couple of years ago. The source and artist are on my channel description.

It's the 3DS version but with a Sega Saturn UI mod

Corridor of Time-Vision 5, the Beelzebub dungeon. Enter the no-stopping zone to the south, then go to the right. Here you can find the Hinokagutsuchi, the strongest sword in the game, at the end of the hallway.