Very cute game and the artwork was amazing! I wish the dangers showed up a bit better, maybe with like VFX or something, since sometimes trying to focus on both worlds and the dimension of do you need to be up or down on this part, was very hard. But that's more about my skill than the game, I just think by them showing up a bit better could make it quicker to notice and react.
I think tutorial could be a good one to help with that though! I had some issues on my first play, that it wasn't accepting any inputs, somehow the full screen on the browser made it so that it wasn't working, I tried going off from full screen as well and didn't work. I refressed the page and got it working with the small screen (didn't test it again on fullscreen). Probably just some itch.io issues. :)