Thanks for the feedback! I intentionally didn't add mouse controls to keep the experience closer to the original, and also for a tougher overall experience.
It's a fair design decision to use keyboard for added difficulty. However, the original game used a trackball, so a mouse would probably be closer to that experience (though not exact) - one of the reasons I used a mouse for my pong game (to substitute for the dial that the ATARI used).
