I use Firefox and it works fine after i allow it with NoScript.
Do you have any blockers maybe?
A lot, but plugins and addons don't work on incognito mode, and if a game doesn't work I always try it on incognito as well. No dice. Furthermore I tried launching the game on *shudder* Microsoft Edge and it still doesn't work, and I definitely don't have any plugins there.
I requested the games on Reel Rush then since Alien Robots just won't work. I don't expect much though .. RR can be really brutal