I've seen the clue, but thanks.
the solution is to follow the yellow line, and turn the keys on at the points where the line turns. I hope you can make it to the end- the winscreen is one of my favourite bits! Thanks for playing :)
Finally finished it! Thank you! Altough I had already given it 5 stars before I finished it, so I can't make it up to you.
GMTK
By the way I found your game because I'm looking at creators that impressed me last year. You never dissapoint!
Hooray! Glad you enjoyed it, thanks for playing and for your nice comments :)