Huh.
I won't bother reposting the whole thing but this one person's theory is that the game we play in chapter 3 is a Dragon Blazers romhack that Tenna tried to mod back into being normal, pointing out how on certain pages on the official website, RAMB is misspelled as ROMB, and the track that plays in the S Rank room is called Dump (as in, to dump a ROM)