agario_skins_rotator.js

// get skin names from this address
// http://www.agarioguide.com/skins/
$$('.wp-caption-text span').map(el=>el.innerHTML).join('|');

// declare skin names:
let skins = '2ch.hk|4chan|8ch|9gag|Argentina|France|Austria|ayy lmao|Bait|Bangladesh|Belgium|Bosnia|Botswana|Brazil|Bulgaria|Byzantium|Cambodia|Canada|Chile|China|cia|Confederate|Croatia|Denmark|Doge|ea|Earth|Estonia|European Union|German Empire|Germany|Greece|Hitler|Hong Kong|Hungary|Imperial Japan|India|Indiana|Indonesia|Iran|Iraq|Ireland|Facepunch|Italy|Jamaica|Japan|KC|Latvia|Lithuania|Luxembourg|Maldivas|Mars|Matriarchy|Mexico|Moon|NASA|Agario|Netherlands|Nigeria|Receita Federal|North Korea|Norway|Origin|Pakistan|Patriarchy|Peru|Pewdiepie|Piccolo|Facebook|Pokerface|Poland|Portugal|Prodota|Prussia|Qing Dynasty|Quebec|IRS|Reddit|Romania|Russia|Sanik|Satanist|Scotland|Sealand|Sir|French Kingdom|Steam|Feminism|Finland|Stussy|Sweden|Switzerland|Taiwan|Texas|Thailand|Tsarist Russia|Tumblr|Australia|Austria|Turkey|Ukraine|United Kingdom|USA|USSR|Vinesauce|Wojak|Yaranaika|Merkel|Tsipras|Putin|Obama|Hollande|Dilma|Kim Jong-Un|Cuba|Venezuela|Berlusconi|Cameron|Clinton|Hillary|Blatter|Chavez|Fidel|Palin|Queen|Boris|Bush|Trump'.split('|');

// set random skin every second:
(function loop() {
  $('input')[0].value = skins[Math.trunc(skins.length*Math.random())];
  [].filter.call($('button'), (i) => i.innerHTML === 'Play')[0].click();
  setTimeout(() => loop(i), 1e3);
}());