In Agario Unblocked, players can play as a tiny blob, aiming to gain maximum Mass. They can also purchase single spawn rush mass boosts for nine or 19 coins. A red virus requires three mass balls to create a new one. Each match features a leaderboard where the top 10 players are listed. They must cooperate to defeat the other team and capture the entire map. It's a simple, yet challenging game that anyone can enjoy.