You need to refresh the page to restart the game, but you will probably need to start over using 'New Game'.
You know, the first 30 seconds or so, I thought I had found some kind of easter egg and maybe was gonna get jumpscared and TPed back to the store, but after 3 minutes straight of "AAAAAAAAAA" I realized it miiiiight not be intentional. Just thought I'd throw that in there or funnies. (Btw I beat it without dying, and good job on doing this 90% keyboard free!)