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.
Ass Pull: Sintel killing the best friend she's been searching for? Not a great ending.
The Woobie: Scales's first seen has him abandoned as a baby dragon, with an injured wing. Then, after befriending Sintel, Scales is soon kidnapped. And if if couldn't get worse, he's accidentally killed by his best friend. Poor guy...