For starters, games not on Nintendo systems are ignored. Thus Super Ghouls 'n Ghosts becomes a direct sequel to Ghosts 'n Goblins. And so on.
And then you have their list of Final Fantasy games...

Dear lord!
Some mention of SaGa or Seiken Densetsu or the Japan-only Final Fantasy games would have been helpful, but nope!
I can't be the only one who owned both Final Fantasy Adventure and Secret of Mana for years before realizing they were related games. Thankfully we have the internet now to sort this thing out.

