AGARIO WORLD RECORD?! - BIGGEST BLOB EVER! 22499 mass - Hacker found??? - Agario - Agar.io

Whilst playing Agar.io of the Seattle #2 server, I found out that everyone was dying pretty quickly, meaning it was really easy to get onto the leaderboards. I have continued playing normally after I saw a player with a huge mass. After I ate him I realised how big he actually was. Was he a kind of hacker? And if he was, do you guys know how he did it?