Arkanoid was a posh version of Breakout. You just hit a ball up at a wall, and every brick that the ball hit disappeared. You just kept going until every brick in that wall had gone. And then you got another wall to hit a ball at... (*sigh)
I might not like it, but I must have spent a good 200 hours or so (in total, not in one sitting,) playing it. Downright addictive.