Mega Gulp was a soda drink exclusive to Pizza Planet and sold only there until August 10, 2019. It got discontinued when Pizza Planet then had decided to use regular cola and soda from other brands instead of producing their own cola, namely because of production costs. Prior to the drink being discontinued, it was moved to the secret menu after Independence Day 2019, but this created a decline in consumer demand for the beverage. It used to cost $3 to purchase one cup of this beverage.
Soon after discontinuation of sales and production of the drink, the government of Bloxburg orchestrated an intensive raid on everyone's homes in Historic Downtown Bloxburg. The raid involved checking a Robloxian's fridge(s) for any Mega Gulp plastic containers and cups that still contained the drink. The drink inside the plastic containers and cups were then dumped out to soil near plants and rain gardens, appeasing the Robloxians who like a world with zero waste. Furthermore, the plastic containers and cups are prone to leakage.
Only some Robloxians as of now still have empty plastic containers and cups on what used to contain Mega Gulp, because they had already drained the cola and kept the original cup.
Eventually, the Robloxian government banned the imprints on the plastic container and cups.