Level #30: Link to the Past

I instantly recognized that level, its name and its author almost 20 years on - nostalgia with a spot-on name for it :]

Futeko

Neonesque

Level #37: Tetris

RMKelly

I remember playing this over 15 years ago, I used to play this game with my father, and we were both completely stumped. It took me two days to figure out the solution. I was so proud of myself! I  still have the solution memorized to this day.

Level #12: Stuck Zipper

SuperNova

I finally got inspired by valycian to solve this level!