A Detailed Slither.io Control Guide
In the event that this will be your first slither.io game experience than you should not worry about the slither.io controls before you start playing it. It has a quite simple controls just like the game mechanics and we bet you will get use to the slither.io controls in a very fast manner. First of you will have to use your mouse or the arrow keys as the slither.io controls in order to provide direction to your snake. We recommend you to use your mouse instead of your keyboard for increased accuracy.
In the event that you want to speed up in the game then the only slither.io controls you will use will be the left button of your mouse. Of course in addition to these slither.io controls you will have more keys to use whenever you will play on slither.io private servers in order to take the advantage of slither.io hacks. Each hack has its own shortcut and these shortcuts may vary depending on the servers. You can check the review of the slither.io mods in order to learn these details.
Make sure you disable any other slither.io extension and scripts first!
How to install user scripts?
Firefox and related browsers: Greasemonkey.
Google Chrome, Chromium, and related browsers: Tampermonkey.
Opera (version 15 and later): Tampermonkey or Violentmonkey.
Opera version 12 and earlier supports user scripts natively. Violentmonkey provides a friendlier UI and better compatibility.