The keyboard controls are: a LEFT d RIGHT 1 1P 2 2P j FIRE 5 COIN t TILT TILT! I was surprised and amused to see that there's an actual tilt sensor input. I think most people with a passing familiarity with arcade machines know that pinball machines had "tilt" sensors. People would smack, shake, tilt, etc. the tables in an attempt to change the trajectory of the ball. Or, perhaps they just abused them out of frustrat…
The irony of the pinball TILT sensor, at least in my personal experience, is that if you don't understand what the "TILT!" indicator on the backboard means - which childhood me and my aunt, trying to play a game of pinball in probably a Pizza Hut in the late 80s and stymied by a mysterious "TILT" light, clearly did not - is that one might misinterpret it as an instruction to attempt tilting the machine, thereby facilitating exactly the sort of damaging behavior which the malfunctioning sensor was intended to guard against.