Update version 8; [see first post for downloads]
the level "Mental Block" has been added to the Arcane rank, replacing the level "Get out of the Pool" (which I attached to this post, to save it for posterity.) Get out of the Pool was originally a level featuring a glitch and arguably not that great compared to the rest of the rank.
-This level Mental Block was not with the rest of Clam's Lemmix levels and was overlooked until now.
Thanks to geoo, Pooty and kaywhyn for bringing it to my attention.