Really cool game! Only won after 3 rounds but i did it! Amazing that you made an AI for the game, it doesnt seem to weak or too strong so its perfect.
But i found out that moving diagonally is much faster than moveing in one direction. If it isnt intentional i think you have to multiply the speed with 0.7 or smth like this when moving diagonal. and i thnk you can make the players be a bit faster, crossing the whole field takes quite some time