While not great, this was definitely good. It's mostly because the joke is so unexpected. It seems like there were a lot of cartoons just like that out at this time. The animation is as good as ever. I think it could have been more than just one gag. I would have liked this more if it was in some sort of compilation.
I actually did get relaxed as I watched this. I mean, it doesn't seem to be that zany until the end. I like how he seems to poop out his brain. Dang, I'm weird. The sounds/music were great too.