One of those "weird for the sake of weird" episodes that didn't seem to have much of a point. Don't get me wrong, I'm up for a bit of surrealness from time to time, and the idea that Finn and Jake went through the looking glass and found a somewhat skewed version of their world on the other end is a neat enough premise. It was just a heap of conceptual weirdness that left me cold for whatever reason. That art was a little more fluid and yet stutter-y, which was interesting, but overall the off-brand counterparts in the other dimension in the quest for the sea lard just didn't do it for me.
Ok, that's it. All the episodes where the producers decide to use a different kind of animation are boring.