This was better on rewatch. It's not very funny but the plot is really interesting. The dynamics between Gary & Spot are really cool and the ending does give a good feeling to me. It's a nice episode, showing that not all good episodes need to be funny.
This is one of the few episodes of season 12 I really despise. While I wouldn't even put it in the bottom 5 I really dislike this all over the place and weird episode. I can see how people like it but I give it a 0.5/10.