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.
Bittersweet Ending: Dot makes it home in the end, but she is devastated at the sudden departure of the kangaroo. Dot even sobs as she cries out for the kangaroo to come back at the end credits roll. Also, the kangaroo doesn't find her joey. See Tear Jerker below.