I have no idea how tumblr asks work now so I hope this works lol
I'm not sure where you got the notion that Guster and Lisa were related in the 4Kids dub. Guster never mentions Lisa, and Lisa's only reference to Guster is "I should've known. Iβve warned you about him before, Goroh. Iβve never trusted that man. You should let him go."
Meanwhile, the GP Legend game barely follows the anime. The US localization mistakenly assumes that Guster referring to Lisa as "anesan" in the JP version of the game meant that they were actually related. However, it's a matter of rank, not family, seeing as how Lisa is a formidable space pirate that Goroh's crew also work for.
Right, did the F-Zero 4kids dub even get to Antonio Guster? Checking it did get to that episode and the dub doesn't make them in laws.
Thanks for the clarification that it was exclusive to the english GBA adaptation of the anime and not the 4Kids dub.
Still I think it would be interesting for Guster to be Goroh's brother in law and Daigoroh's Uncle, would add more to their relationship, I think.