One suggestion I have is to add a hotkey for "Undo", and maybe another for "Play again". Another that would be nice would be another to the dashboard.
Thanks for linking the user ID's on the leader board to the Ports. This all by itself is enough of a reason for me to participate in the inputting.
I think the great philosopher, Ron White, said it best, "I believe that if life gives you lemons, you should make lemonade... And try to find somebody whose life has given them vodka, and have a party."