These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Surprisingly Improved Sequel: The first special was considered alright with the only complaints that the character don't really interact with each other for very long. The second special however improves on this and had a much tighter story allowing characters from both universe to interact with each other.