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Map Requests / Re: List of unmapped NES games
« Last post by dark_lord_zagato on February 17, 2026, 11:13:50 am »King Neptune's Adventure is now fully mapped and was posted yesterday. For those of you who are familiar with this game, and might be wondering how in the actual hell I was able to screenshot the 10th bill, i'm going to share a few things that I dug up in my research.
Color Dreams made a bunch of unlicensed games back in the 1990s. There was some kind of contest to promote these games and get them to sell better. I'm not too familiar with the details of this contest or how you would go about claiming the prize, but I think the challenge in King Neptune's Adventure involved collecting 10 of these dollars that are hidden throughout the game.
I couldn't seem to locate the last several bills on my own, and GameFAQs didn't have this information, so I did some searching and found what I was looking for on another forum.
The community on Video Game Sage figured this out last year. One of their members, 0xDEAFC0DE, analyzed the code of the game and found some absurd conditions that were placed on finding the 10th bill. A very specific number of lives, seahorses, and bombs, as well as the easiest bill to find secretly disqualifying you if you pick it up before the end of the game.
If I hadn't found this post I would have just assumed the last bill was bugged, or doesn't exist, and wouldn't have included it in my maps.
Color Dreams made a bunch of unlicensed games back in the 1990s. There was some kind of contest to promote these games and get them to sell better. I'm not too familiar with the details of this contest or how you would go about claiming the prize, but I think the challenge in King Neptune's Adventure involved collecting 10 of these dollars that are hidden throughout the game.
I couldn't seem to locate the last several bills on my own, and GameFAQs didn't have this information, so I did some searching and found what I was looking for on another forum.
The community on Video Game Sage figured this out last year. One of their members, 0xDEAFC0DE, analyzed the code of the game and found some absurd conditions that were placed on finding the 10th bill. A very specific number of lives, seahorses, and bombs, as well as the easiest bill to find secretly disqualifying you if you pick it up before the end of the game.
If I hadn't found this post I would have just assumed the last bill was bugged, or doesn't exist, and wouldn't have included it in my maps.
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