Very original concept and very inventive. I have an astigmatism so I couldn't figure this stuff out (couldnt ever get stereoscopy to work for my degree). I forced my partner to play though and they had a blast.
They made it to level 2 on the bear game, which strained their eyes but was definitely doable. So the tutorial definitely works and so does the gameplay.
will def keep this on hand as its a pretty polished and well-explained tutorial evidently, so kudos to you for that and grats on the release