I love the capybara character, very cute little guy and good animations! I also enjoyed the movement, the glidey nature felt fast and fun, and bumping away the little blobs of emotion was quite satisfying (especially with the little bop sound)!
One thing I would want might more variation when you grow larger, as the game still feels fairly similar when you grow. Maybe more powerups or abilities for big capy? Once I realized you only had to protect one memory-- that was my main strategy to survive.
One thing that I think could also improve the story-- if you were to make this a bigger game, would be some cutscenes/slides about what capy's memories are! I think that would be a cute reward when you protect a memory.
But overall, a very fun little experience! I liked the wave counter also-- it was a good piece of information to keep me going to beat the level!