very good, sadly I'm not smart enough to 100% 2-6, so I'm gonna wait for a tutorial cause I'm bad. Difficulty curve balanced enough for someone like me who likes puzzles but isn't good at them to 100% up to that point
You need to collect the two burgers on the left first, and then start with the burgers at the bottom. Also, do not press any switch until you collect all burgers. Your last burger should be on the top that is very near the switch.
If you are still stuck, I can send a solution image.