if this perfect and flawless animation loop is what you are calling a state of ''forgetting how to animate'', then, please teach me how to forget animating as well, because its AWESOME!
while im not very familiar with the undertale game, (i know the characters and the basic story, but i've never played it), and while i usually dont like loops, this was a splendid loop of the great car-meme with the epic song ''baby dont hurt me'', originally done by jim carrey, so many years ago!
(the comedy sketch, not the song)
also, i really liked how you've added the three most fitting characters for this situation:
the adorable & bold papyrus, the cool and funny sans, and ofcourse the main protagonist of the game, frisk himself/herself!
i love their face expressions, and the fact that you've managed to give them the correct/matching face expressions per character is quite amazing.( and by that, i mean that you've drawn their face expressions in a way that matches with their personalities, to be exact)
also, the animation is very fluid, and the animation speed is really nice, with a good pace.
what can i say?
you have a great animation style, your drawings are excellent, the animation is nicely executed and very fluid, and i really like how you drew the characters in this small loop.
i can only imagine what a bigger flash movie by you will look like.
you are great!
nice movie, keep up the good work, mate!