Very lovely looking game! I included it in my Game Maker Toolkit’s Game Jam compilation video series, if you’d like to take a look. :)

nice visual

The aesthetic and sound design are both great. The first two (pink and green puzzles) were fun. The blue and black ones kinda just felt tacked on, which I'm assuming is more to do with time constraints than anything. My biggest problems, as most have stated, is that the control scheme is totally unintuitive. Even after getting the hang of it for movement, when using it for precision puzzles like the green one, I was constantly making mistakes.

I think it would also be helpful to provide an indicator as to what color the player should be using in an area, or at least make the color transition snappier. As it stands, it feels like a chore to switch through all of them to figure out what you should do.

Overall, cool game.  I think you main issue you've got to get sorted is the controls.

Great damn look and idea. I have to see, considering how fluid movement is, waiting for each color to take effect is excruciating – it feels like it should be instant.

Nice little game with a cool art style, but keyboard controls for an isometric view puzzle game is not the best fit I will say. A controller will be more intuitive I think. It was hard for me to navigate safely.

Splendid visuals, with really great use of colors! I love the look and atmosphere of this game.

And cool to see some puzzles. The main mechanic gives some enjoyable moments, and is a great way to explore the world. It could have been used a bit more during the second half though.

My main concern would be some platform sections, a bit hard to manage with the isometric view. But falling is fortunately no too much punitive.