I've been pondering the possibility of doing a fifth stage for Kid Chameleon to add an extra 25 levels to the game since there are enough empty map slots in the ROM to support it. I have done a little test run over the past couple of days with my KC level editor, and here's a map I came up with:
To run the new map, use the PAR codes 100000:006A and 10016E:45FF. Do a soft reset after enabling these codes and when you go to begin the game, it should take you to the brand new map I created.
It's mostly complete, aside from a few minor details (like detailing the rocks.) I am curious what you think of the difficulty, how you like the design, and so on. This is just one map I'm considering for a stage 5 add-on to the game. The maps are intended to be, for the most part, more challenging than any of the maps currently in the game, or as challenging as stage 4 at the very least.
I think I'd like to get a team of level designers to create maps for the stage 5 project. This map I created could be a map for the project, unless better maps emerge later. It all depends on how many people are interested in doing this. I have a number of things I want to do with it. I'm looking to see if anyone wants to help me.
BTW: The editor is available at http://www.megadrivechamps.org/kid_chameleon.html