The Retrode 2 overdumps Killer Instinct Gold (USA) at 16 megabytes. It should dump at 12 megabytes. No Intro has a record of this overdump in their database at the link below, with the correct dump also listed (dumped by me).
https://datomatic.no-intro.org/?page=show_record&s=24&n=0355
I was able to change the relevant settings in the Retrode's config file to get the game to dump at 12 megabytes, but I'm wondering if this would be considered a bug? Not sure where else to report it, so I'm posting here.
I'm on firmware v0.25a.