Rush Mode is a game mode for Agar.io on Mobile. This mode is not yet available for the browser version.
In this game mode, you have 5 minutes to grow as big as you can. You can buy a Rush Mass boost for 9 coins (+20 Mass) or 19 coins (+40 Mass), which is active for only one spawn. Viruses in Rush Mode are red and require only 3 ejected mass balls to create a new one. Your mass is shown in decimal number, unlike other game modes. After the Rush Mode ends, the leaderboard (Top 10) will be displayed.
Changes and UpdatesEdit
A cell's mass is now displayed in whole numbers. The time before a cell merges has been reduced.
The March 2017 update to the mobile app brought several more key changes to Rush Mode. The size of the game field was significantly reduced. Also, a timer for "Estimated Time" is now displayed during the pre-match "Gathering players …" screen.