Mario factory is a cancelled game that was going to be developed by Nintendo for a unique cancelled unnamed hardware but never got past the concept phase. It was basically going to be Super Mario Maker for SNES. This is a test I made. I'm going to recreate the full game soon. Also yes I purposely used Gameboy sprites but the final will probably use SNES sprites. Sadly I was unable to figure out who the last character in the patent artwork was.
Credit to dev art, the spriters resource and Nintendo for all.