HLaB
Marie Attoinette Fan
That's the one I use (every tile) and it's been pretty reliable when Ive flicked it on. My only real criticism is sometimes it's a little too small (big scale) and I'm a little unsure that I am heading towards a red tile or away from it. I am also not sure if the green tiles are those Ive been in on the ride or in the computers memory. But I'd like a record of all time explored cells but I guess that would probably be too memory intensive.