Fixed

No list of controls, no way to get back to playing after losing besides reloading the page, no tally of score/time, no difficulty scaling, no nothing. All that's there is the first signs of a game that might be ok at best.
You don't get slack for calling it a beta, this is too early a build to even be an alpha release, let alone released at all. Please be more patient with releasing your games next time, even if it's a beta. You need to have more than just two moving boxes and a game over trigger should they touch.
Edit: It still doesn't qualify as a "Minimum Viable Product" imo, more a proof of concept. But just being able to actually restart the game makes it leagues less infuriating than before. Now, instead of getting angry, I'm just bored.