Agar.io is a fun game where you play as a little slime and must absorb little balls to gain size until you are big enough to absorb other players. It's really fun.
Apparently people are having a primitive clan system like this '[Clan Name] Username' I saw it being done on the Dashnet Forum (Cookie Clicker Forum) with a way like '[Dash] Username' so you can see they are on that side. I mean all it is is to distinguish, as you can still absorb them and stuff.
So if you are on, so I know you are an ally (Though I would probably recognize the usernames) you should put [UttMad] before your username to distinguish you. I am rarely on though, I can only play on school computers because my current home laptop is utter shiza and I get bad lag.
Here is some cool tidbits I know
TIPS: Spacebar is to split half your mass, this propels that half far forward doing a lunge which is good because the smaller a slime is the faster they are. You have to wait for awhile before your half can be reabsorbed. You can also split multiple times before you hit a minimum splitting size.
The spiky green things that spawn are a double edged sword. They will drastically split you down to size if absorbed if you are big enough. If you are too small though you can avoid the big guys by hiding behind or even in one.
W to eject mass is extremely useful. You can help allies or just be friendly by giving them some of your mass. You can also send mass to the spiky green things they will get bigger and bigger until you give enough mass for them to split apart. This can pretty much shoot a spiky ball into a big guy if you aim it right. This is a good way to gain size and onto the Leaderboards fast.
LET US DOMINATE THESE LEADERBOARDS, LIKE ALLIES WE SHALL WIN THE WAR!!!!