You definetly get plus points for the easter egg!
I like the core gamplay and also overall, the movement feels very smooth. The only issue I faced while playing the game was that you sometimes had some really tricky jumps, which felt tricky in a sense of being unfair, e.g. when jumping while you are directly under the ceiling or jumps where the platform you have to activate by using the lenses is at the max-jump-height/length. Other than that the art style was great and gave the game a very unique atmosphere.
Cool game. :D