What’s funny is, Skydancer’s an odd addition to this cast since everyone else is from much much later. I’m guessing they meant her to be the pony from later on who was called Sky Dancer who looked very different.
Alternate ending: Up, Up and Away got so sad that her friends didn’t want to have a party with her she thought they didn’t wanted to be her friends anymore, so she snapped and had a party of her own with inanimate objects such as a pile of rocks and a bag of flour as her party guests.
Could explain why she’s so desperate to throw a party for somepony, anypony. :O
That would actually be a really enjoyable scene. ;)
1986: First known major outbreak of the Cutie Pox.
Edited