I made a game where you are a little cube, getting to a door on the right side, but there are some grey walls you can only see when you are close to them making the game harder. The graphics are 8 bit and pretty good and the game has 20 levels. BTW, this whole paragraph is a link to the game. Hope you play! :)

the game is great!

I want to give feedback, and some constructive critisism…

…but what is there to criticise? This is absolutely brilliant! Bravo.