Hacking-the-Chrome-Dino-Game.js

;(function() {
    var canvas = document.getElementsByClassName('runner-canvas')[0];
    var ctx = canvas.getContext('2d');
    function run(){
        var hit = false; 
        var data = ctx.getImageData(150,180,175,50).data
        for(var i=3, len = data.length; i < len; i += 8) {
            if (data[i] > 0) {
                hit = true;
                break;
            }
        }
        if(hit) {
            var event = new KeyboardEvent('keydown', { key: 'ArrowUp', keyCode: 38, location: 0 });
            document.dispatchEvent(event)
        }
        requestAnimationFrame(run)
    }
    run()
})()

不同版本浏览器像素提取范围不一样，部分浏览器可能需要 (100, 100, 50, 10)，脚本只是提供一个基本的思路