I found a bug: on the title screen it says "Press any key to play", but if you press "M" it mutes the sound and does not start the game. I'm LOLing so hard right now.
Well, the trails on the balls & paddles make it practically impossible to tell where the balls are. This games is therefore unplayable without being able to remove them. 1/5
Well yeah, I mean several keys with other functions don't work XD Pressing the left key, right key, <R> key, or <M> key won't actually start the game.