here's the original
http://www.clickmazes.com/xvi/ixxvi.htm
here's the remake
https://www.puzzlescript.net/play.html?p=10738349b5a06c8dd54f1ffa39f21a58
There's no ending btw you just see how far up the numbers you can get.
if you want, press X to get Ben Small's challenge that allows for going even further.