The Marble Race in Harmony of Dissonance is not a Marble Race.
It's a STEEL BALL RUN.
Jesus fuck, Koji Igarashi. You are incorrigible. XD
Also evidently a prophet for making a Jojo joke 2 years before the manga did. I wonder if Hirohiko Araki might be a Castlevania fan...
I WANT TO BELIEVE
THE TRUTH IS OUT THERE