I got the solution after I died 3 times and read "A speaker?"... and I remember thinking when I first read the instructions "Why did they waste time making an options menu during a jam O.o?" and then it clicked xD
I loved the art and the concept, very smart. Very cool and stylish entry, good luck!

The game is good , But I do not find the solution

thinking outside the box, I love how this game made me feel smart :) 

for a while I thought the fail marks on the wall will draw a ladder to the moon and we get to escape and I was dying like crazy, but something felt off, the marks weren't showing any interesting behaviour. 

how did you guys come up with the idea for the solution?