Doom was a game that had an interesting SNES port. It wasn’t the best, but was an accomplishment in its own right. id Software had no plans to bring the game out on SNES before they received a package from Sculptured Software their offices. The package contained a reverse-engineered version of DOOM that ran on the SNES. that Sculptured Software had worked on in their own time, completely unsolicited and sent it off to id. id was impressed, and helped bring the port to the SNES
John Romero opened up about the path for DOOM to the SNES in an interview with ShackNews.
“They reverse-engineered it and sent it to us and we said, ‘Um. Okay. We’ll get this published.’ That was probably one of the rare times when a company decided to do a port and then just did it for free. We didn’t even think to do a Super Nintendo version of Doom. That hardware was absolutely not made for 3D. Super Nintendo was good for horizontal scrolling, parallax effect, all that stuff, but Mode 7 was as crazy as it got. We were really surprised. We didn’t think the Super Nintendo could do it, but incredibly, that was so many people’s first exposure to Doom.”
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In addition, I would like to add that there is an active Nintendo retrogaming Facebook community group you can join at https://www.facebook.com/groups/nintendoretrogamers/
For more, visit Retro Gamers Hub (www.retrogamershub.com) for their extensive collection of retrogaming interest groups to choose from.