Thank you! I wonder how many levels you found. There are 27 in total. That's still a fairly small number, but I think some people don't realize there are that many levels because of how the game is structured. I have a lot of lovely Snake pictures so maybe someday I can share more pictures with the world.
Sorry my bad. I had found around 15 levels. I didn't think there would be 27. Somehow I had the impression that I could no longer reach new levels, no matter which exitflag I took and I was too proud to activate the easy mode. Have now tried it again with infinite jumps and after a while I found a few more rooms.