I liked the segment on how you used to get a ton of 3d glasses, it makes the game more relatable lol. I also liked how the glasses shifted when you pressed J, it made it seem more glasses-like. I also spammed J to see both colored blocks at the same time, maybe having a ranking rewarding you for switching less rewards the player more for memorizing the layout. You know what would be cool though? If the music changed with the color of the glasses. The music is short to boot, so having it be adaptive music will make it a little less redundant. This is a cool idea! (If you turn this into a form of pac man Ill sell you my soul)