Attendance quest - what are the snacks for?

Isaac, are there gonna be strings to indicate which one is which...or is it gonna be a guessing game...?

Lunchbox
Lunchbox
Lunchbox
Lunchbox...

Dear God I hope it's not a guessing game and that the levels are marked! >_<!

If it's a guessing game, they might as well give it to you randomly.
Otherwise, the first few people would be screwed and then when the prize is found, everyone will already know the order in which the levels occur so everyone'll know which ones to pick...