So I was thinking of remaking Mario's Wacky Worlds The unreleased CD-I game
Most levels are incomplete or broken but are semi-playable. Lot's of room for creativity.
Here are some links, if I have peaked your curiosity.
English Site--Some good screenshots
http://www.videogameobsession.com/videogame/cdi/mario.html
French-Canadian site (I search Quebecgamers Mario wacky worlds, and use google translate)
It has large maps and videos of each level. (Best site of the two)
http://www.quebecgamers.com/dossiers/mario_wacky_worlds/index.html
I really wish you could view the Background in Reggie, cause a guy could make the maps (cleaned up of course) and then just put invisible blocks where everything was already laid out,
Just my thoughts.