Bold endeavor! Counterfeits are a threat to any collecting scene; it's disappointing but inevitable that its reached the N64 generation. If you and others here think this work is a helpful way to sniff out fakes, I look forward to your compilation.There are N64 games, of course, that no one will ever counterfeit for economic reasons. Its hard to think that Madden, QB Club, and some other sports games will ever be of value, or super common games like my beloved SWE1R. You may want to save yourself some time and energy by drawing a line at some resale dollar value. But then again, the completionist mentality is strong in us all, so if that's your aim, good luck