yeah, there are a few connections, although it's all a bit tenuous and nothing really concrete.
* as Pepe said, it was released in a "NEW GB COLOR" cart, like VF's early games
* They did have *some* involvement with hacks - eg Super Fighter S, their first confirmed game, is more or less an elaborate hack of Takara's GB KOF games. and in fact it's based on KOF '97, which itself was a hack of the official '96 adding in the characters that only appeared in '95
* it uses PC Paint fonts in some places, which suggests if not a link to Vast Fame themselves, then at least one to Gamtec or some related company (eg BBD/Sintax)
* the title screen has kind of a blue diamond pattern in the background, and they were quite fond of using blue diamond patterns in menu backgrounds or other random places (and of course in their own logo)
* and this is completely subjective, but the graphics (sprites especially) are very high quality compared to just about every other hack I've seen, so whoever made it at least had an experienced graphic artist on staff