@PsychoGoldfish looked at one of these, but did not correct the issue. Issue still stands. I think he maybe didn't understand what I was trying to say so I'll try again.
When a user goes to their medal pages, for example here http://neonspider.newgrounds.com/stats/medals or replace my name with any other user, they are supposed to be able to click on "Play" next to any of the games to play the game. This does not work in a few cases because the games have incorrect IDs on these pages.
Solution = Fix all IDs of incorrect games to the correct IDs in all the medals pages. Obviously the problem is, for whatever reason, there are at least two IDs stored on the database for the games in question, with an incorrect ID being pulled and stored on the user medal pages for some reason.
I have so far found two games with this problem, but there may be more, and they should be handled on a case-by-case basis as it's a pretty rare issue, but if it affects a game, it affects it 100% of the time.
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Blasting Agent
The incorrect ID listed on the medals pages is 1262751648 and the correct ID is 522921
Pitluff Driver
The incorrect ID listed on the medals pages is 612056 and the correct ID is 612059
And by ID I mean the numbers at the end of the URL that gets you to the game in question, so www.newgrounds.com/portal/view/ and then the ID number