So I played Slither.io and my biggest size was 3611. So what you need to do is eat all the smaller worms and the way to do that is you circle them and let them run into you. Then you eat them and also follow the blinking dots that move. Also go to the outsides of the cage in the game and there are less worms then you can get bigger and go back to the middle but be sure not to run into the rims of the cage it will kill you it's color is red.
Hi I’m Zara Henderson and i played slither.io and my biggest size was 66059. So what this other person says is completely true but this is what I did. I cycled 5 worms big or small and got thousands of dots or energy whatever you want to call it. But what I did do that she/he mentioned is that I ate all the little dots and the huge ones as well. It was so much fun. My dad and I were just sat and a bar (and my brother -Johnathan- and my Mum -Sharon-) and played it my dad had ago and got 1748 which is good for first try but then I said “ watch the master” and I kept on saying I’m 5th place, I’m 2th place and OMG IM 1TH PLACE!!! He said stuff like your amazing your doing so good keep going well done and then I died WAY after that and it said NEW HIGH SCRE I was on 18114 and now it’s 66059! IM SOO HAPPY!! Good luck!!