After watching this short film immediately after the original, I realized it's essentially the same story as the first, but with a dog and a less memorable song. Don't get me wrong-it's a cute film, clearly aimed at young children who will enjoy the addition of a puppy with socks on its ears. However, it doesn't introduce a fresh narrative, which makes it less engaging if you've already seen the original.
That said, I really appreciated how the animation style pays homage to the original film. There are plenty of nods to the first movie that could have been more impactful if this didn't feel like a simple cut-and-paste effort.