Thanks, I'll revisit the screw variants and likely end up updating it to a R9.
Also, something no one pointed out is why I bothered adding Anticipation, Donkey Kong Classics, Ice Hockey, Super Mario Bros. 2, Super Team Games, and Zelda II to the "Does Not Exist?" category.
Those are in there because other 1988 first party titles have been found to have documented 5-Screw variants (R.C. Pro-Am, SMB/DH/WCTM, and the rumored SMB/DH)