Looks very fun! I can't seem to pass through the area after obtaining the first light, is that intentional? I'd say it's good but it's some bugs.
-The sound settings keep resetting
-some screens aren't fit for larger resolutions
I'd recommend you add some more settings and make better controls since these ones make my fingers hurt a lot.
You should add a resolution option in video because of the bug i mentioned before. Overall, great game. Would play again if you fixed the mentioned things and added new content. (Yes i know it's a demo)