Stop making Pong remakes. I see this isn't even your first Pong game but you've made not one but two others.
Game freezes after every time you either win or lose, so that's a browser refresh after every win/loss then wait for the entire game to load again.
If you do happen to make top 10, you won't be awarded the medal unless you click Scoreboard on the main menu in the game itself. This isn't obvious and could be an annoyance for someone who made top 10 but then no medal.
Seriously though, move on. No more paddle ball clones from you -- come up with something else.