I liked that you slowly introduced the things, not all at one. If you did all at once it would be too much.
The colors were also too much, maybe just different shades of one color?
The music was a good choice :)
I played all the levels, btw.
Viewing post in Kattguld jam comments
Thank you! :) Yes the colors were too much. It happened that when I wanted to make a WebGL build, my platform textures were all pink because it didn't want to load the shader (one that added a black outline to the edges of platforms) attached to them. So as a very very hot fix I decided to introduce 3 drastically different colors so that players can tell where one block ends and another one begins.
It kind of hurts to see it like this, but I have some learning to do before I can make it work like I want to. :)