Oh my god, you're actually a menace to push through my entire rushed puzzles without any explanation, there's a lot of things i can improve i agree, i had way too much thinking time which left me with a lot of time to just think about puzzles, puzzles like the one you mentioned where supposed to be introductory to boxes but since that was a level that was made some time after some other later levels i didn't even realize it was teaching other things, i was thinking on something way simpler, but after hours of just "i mean i can add that" it devolved significantly into a lot.
Another thing i was actually thinking on at the time but ran out of time, was a flickering animation to the green light turning off which would show the player that the green is there for a short period of time, still not super explained but it would've helped the player figure out the new mechanic and added a layer of polish.
A lot of things i would try if i expanded upon this game in the future but i'm not sure if i will.
Anyways still thank you a lot for playing the entire thing!! and for the kind words and feedback, means a lot, especially that atleast somoene saw the ending