If you're going to attempt the easter egg, I recommend that you wait until a new update, there's currently a issue where if you purchase the box / gobble machine or even build swords you'll get kicked from the game, with a " TriggerString" error.

I'd like to add that no matter what you do you'll always come across this error, even if you don't purchase the weapon box, use gobble gums, You'll come across it sooner or later, after you get to a higher round, I had it happen to me 3 times in a row before round 5 whilst attempting the easter egg, so we tried to avoid buy-ables and it crashed at round 10.