How can I make the QR code bigger? The QR code is not big enough to be scanned by the program, how can I fix this?
You can also simply include an enlarged version of the QR code (as an image in a spoiler) in the first comment below a level upload.
Nice riddle. ;) Just in case that was an honest question, easy: metal objects are able to move in game and several can be combined in a group, but motors are special in that their axle can be fixed to another object. You can fix this motor to a slider because then the whole group can move together, but fixing it to a stone block for example now means the whole group can only rotate around that axle.
