https://www.ebay.com/itm/Mike-Tysons-Punch-Out-Nintendo-NES-...
The label is peeled up in the corners and on the top, label is a bit crooked, and it's non-REV-A.  All the Mike Tyson 5 screws were REV-A, right?

Sure does look suspect.

Suspicious for sure. Alot of signs of the label being lifted and reapplied. That being said I cant say for sure.

Looks like dude was impatient with the hair dryer.

The kicker to me is the back label. A good fake would have REV-A on the back label.
Is there a way to make sure some poor sap doesn't spend hundreds of dollars on this?

He has 100% feedback. It's weird tho..

100% a fake. If you look at the label close it has signs that it's been heated. Almost looks like water damage on a box but labels don't look like that after water damage. A buddy of mine transplanted a Snow Brothers label back in the day because there was a giant chunk of plastic cracked off the front. He was as delicate as he could be and the label still turned out with the same "finish" as this label.

Not really. You can report it to eBay, but don't count on them rushing to take it down. They barely do anything about the cheap AliExpress fakes all over the place.
 

And another one!

https://www.ebay.com/itm/Mike-Tysons-Punch-Out-Nintendo-NES-...

FYI, I know the buyer of the original and alerted him to this thread, so that one is in the process of being returned.

Good looking out!

FWIW my 5 screw doesn't have Rev-A on the back. It also has security bits, orange dots and not even a number printed on the back label.

Oh good grief. lol


 

Looks legit to me. I say this just by going by how the label has peeled in layers as does any legit nes label from age frays I guess would be the term. Heating a label and removing it and putting it on a 5 screw cart I guess might could replicate this to a certain extent. The back label without the REV-A I've seen on other copies that also look legit being worn badly and such but the board and chip date of third week of 87 says a lot. The only way to be reasonably sure would be to see the dates the chips inside were manufactured. I have some old label MTPO's with the flathead screws with chips that date pretty early in 87 so they were just after the 5 screws. The fact that the other worn one I see has the same back label (No REV-A) and is worn badly with 3rd week of 87 chip tells me it is in all likely hood authentic but this one who knows without seeing the board. At any rate there's going to be so many fakes of these pop up that it's going to be difficult to prove so I see the value being hurt drastically by the fakes. One with a real 5 screw it would be hard to convince anyone once they see so many fakes especially if they are going far enough to make them look worn. Personally I looked for one for years with nothing showing up on ebay except ones so high priced I didn't even look close because out of my range. Only way I would feel good about one on ebay is to find a lot of NES games with one in the bunch without emphasis on it being a 5 screw. Possible but would require much time searching. I actually got my copy of Little Samson years ago in a fairly huge NES collection and many of the titles had original manuals and luckily Little Samson was one that did.

What's the chip date range for the 5 screws?  And is it the same chip date range for all the variants of the 5 screw--the white bullet points, the orange bullets with no part #, and the orange bullets with the part #?
 

Its hard to see because the some of the chips used the company used a proprietary method for chip dates instead of the standard. It took a while for me to figure out but I had late Nov of 87. That really should be the range.

I would think chip dates would vary a bit in 5 screw carts but seeing early versions of MTPO that I have just before 5 screw and the chip dates on the one I see listed tells me if right it should fall under the 20-30th week of 87 to be authentic. My Gold Famicom Punch-out I believe it was early half of 87 as well.