Kiss 'N Tell - S1-E4
Continuity mistake: When the Witch of Walls grabs frog Link's tongue to inspect it, the first shot shows the hole in the wall from where she came out has vanished, then it's back again in the next shot. In the same two shots, her hands change from being right on top of his hand and left on bottom, to left on top and right on the bottom of Link's tongue. (00:10:25)