I remember in the original there was something you could type when the game was playing the starting sequence (I think it was "hidden test"?) to be able to move the ball with your cursor. I'm curious if this works in this version so I'll probably try it out later when I'm at a computer if no one else has.
edit: It does! I installed the AUR version of it that was linked in the repo README and tested it out, and typing "hidden test" during the game startup sequence lets me drag the ball
There were some other easter eggs also that Microsoft ended up disabling. One showed the credits for the folks who worked on the game. If I remember right, it was triggered when you typed "Cinematronics", or maybe "Cinematronics!"... It's been a while since I put that in. And I think there was one that turned the balls into smiley faces, but maybe that was only on the Full Tilt tables.
edit: It does! I installed the AUR version of it that was linked in the repo README and tested it out, and typing "hidden test" during the game startup sequence lets me drag the ball