Soccer Balls 1st update

I don't know how many updates there will be but in this one I've added:
Colours. Player 1 and Left Goal are blue, Player 2 and Right Goal are red, the Walls are black, the Ball is white and the Score text is white.
Score. You can now compete with a friend on the same keyboard for the highest score.
Slanted floor. The ball will always move away from the walls and towards the center of the stage.
(There's probably other small changes I've forgotten about)