When I first discovered KS, I made two levels. One was a fairly newbish one called "Fallen out of the Sky." The other was a roughly 10 screen level featuring Mr. Monkey's "A World with no color" tileset (107). I may have that wrong, but it was definitely a black and white tileset. The challenges were all focused around the hologram, and the name of the level was "Hologram." Most of the challenges also had this creature:
If anyone still has this level, I would appreciate it greatly. It's not on knyttlevels, and the old forum where I posted it is down.