Zap is a two player game that is somewhat of a pong derivative that also involves players activating a box/square during gameplay in order for pong/ball to deflect off of and other player unable to return the serve. The scores are displayed on either side of the marquee from an led display rather than be shown from the screen.
I don't recall seeing the game myself during 1970s when at arcades or places then.
btw: iirc from auction photos, the bezel piece was black and the side lighting bolts (painted onto the bezel piece) were either yellow or red. I don't remember.