It's a great game with a lot of potential! Although you completely stick to the color palette, it does not feel like it. And I seriously wanted to finish it.
Pro:
- I am so glad you put checkpoints in.
- the idea of being small and fast or big and slow is very well developed
- I had fun trying it because I was the reason I did not make it - not the game. I wanted to beat it.
Con:
- I did not like that the velocity in midair changed when I let go of the sprint. I wanted to do the jump, know I did it, and already prepare for the next one. I know this can be a design decision, but I felt betrayed.
- the dropping spikes were kinda buggy for me. on my first playthrough they did not drop at all or were stuck in the wall, on my second they were stuck in the ground and I could walk though
- the background music did not loop. It became quiet real quick
All in all, I like this game. There are a lot of good approaches that a lot of thought went into. Good job!