Great aesthetic and overall delivery! I can feel the Rain World and Animal Well vibes coming off as I play, with the moody background art and statues and all. Committing to the greyscale palette to let the blue and red stand out was very clever, and quite stylish. The sound design and musical choices matched up well, though for some reason my jump sound effect stopped playing at some point. The mask also just makes the main character look like a geared up explorer.
The movement feels tight and responsive, props for getting the wall jump to feel right. I had a couple fun moments of trying to figure out when and where to toggle the lenses, and it plays pretty nice for dexterity challenges too. It's only now that I notice there were no enemies or combat, so it really held its own off of the platforming, navigating and puzzling alone.
I had a few hiccups between otherwise smooth progression. It took me a really long time to not parse the wall jump section before the red lens as anything other than solid wall. Probably has to do with how the indoor areas feel like they have this darker background, while the outdoor areas only have brighter background. Mixing in the dark background is a bit confusing to look at, even if it's contrasted with the while pillars and the fact that it's already passed through before that section.
I don't know how challenging the optional stuff should be, but wall jumping off of the blue/red stalactites I could not get down for the life of me (not typically bad at platforming). Seems tunable enough, with just changing the length of them. Cool concept though. Found 3 of the other cuties, fun approach to doing bonus collectibles/secrets within a jam format.