1 google chrome (web browser) https://www.google.com/chrome/browser/desktop/
2 tampermonkey (you need this) http://tampermonkey.net/
3 the agariomod agariomods.com .
If you can't get an account, heres the one i used, username: hehehgehjasudg password: heyhey1231234
4 the picture place: http://imgur.com/ and my code to my skin: i/JFHie9q
like, sub and comment for any question