Greasy Fork

// ==UserScript== // @name Mirajane Agario Macro Split // @namespace Macro Split // @vers

// ==UserScript==
// @name Mirajane Agario Macro Split
// @namespace Macro Split
// @version 0.01
// @description Press z To Spilt 16 times
// @author Mirajane (Happy Cat)
// @license MIT
// @match http://agar.io/*
// @grant none
// @run-at document-end
// ==/UserScript==

(function() {
var amount = 6;
var duration = 50; //ms

var overwriting = function(evt) {
if (evt.keyCode === 90) { // KEY_Z
for (var i = 0; i < amount; ++i) {
setTimeout(function() {
window.onkeydown({keyCode: 32}); // KEY_SPACE
window.onkeyup({keyCode: 32});
}, i * duration);
}
}
};

window.addEventListener('keydown', overwriting);
})();