Okay just gonna get it outta the way from the start. Art is fantastic, heavy Hollow Knight inspiration I believe. Which is awesome cos I LOVE that game.
So unfortunately I didn't finish the game because my browser crashed and I lost my progress. I had gotten 2 of the 4 times at the time and if I'm being honest it was kinda tedious. Platforming was really punishing because you had to go back to the previous screen to reset and try again, I figured out it was much easier to just die to get back to the start of the area than walk all the way back.
I love the mechanic of your attacks only working in the light but attacking enemies was really slow and after quickly figuring out there wasn't much punishment for death it was easier to just tank the hits and run through the enemies instead of going to the hassle of stopping to kill them.
Also I had no idea where to go after getting the 2nd item. I thought I looked everywhere but I couldn't see anymore doors. I may have just been blind.
I really want to love this game because it's so cool and really love the style. I hope you work on it more in the future so I can come back to it again and replay it.