Fantastic game - well done guys! An incredible amount of content for a game jam. Great pun on the scales. Here are my thoughts on the details:
Presentation: I loved the music and sound effects, and the art and animations looked really good. One thing to note: the font doesn't really fit in with the game - but I'm really just nit-picking there, the presentation was overall fantastic.
Gameplay: Great level design, I never felt lost or confused. For the mechanics - I think they felt slightly off? The gold standard for platformer dashes is Celeste, and the dash there cancels your velocity, whereas the one here keeps it - maybe something to look at. However, I did like playing a platformer with a larger hero - something about the feeling of momentum (screen shake on landing) and the larger hitbox really scratched an itch for me.
Overall, I loved this game, every time I found a new scale I was excited and eager to use it. The time scale was a brilliant curveball and could be hugely expanded over a longer timeframe (I love the idea of making a tree grow by scaling up time). I think this game would work fantastically as a Hollow Knight-like Metroidvania!