Posted April 27, 2021 by Spielsieb
Hint 1: Since I am a crappy developer, the game is extremly case sensitive.
Hint 2: Left CTRL can and should be used to activate and deactivate a certain thing.
If it doesn't work - refresh the game and check if a certain other thing is activated.
You need to be able to activate/deactivate the thing in order to "get" a certain puzzle :)