Definitely interesting to see the official terminology used. Why did I think "the Sonic 2 patent" was for the Aquatic Ruin Zone loop that also has a path through it? Bad memory? Sillier note, I'm sure you're supposed to pronounce "sloop" as s-loop (it's even "S. loop" in the flow chart), but I can't help but read it as if it were a sound effect. Sloop!