Batty is a Breakout style game complete with all the mainstay powerups found in a game like Arkanoid, but definitely earned its place as a cult classic

Batty started its life in a fairly unusual way, being given away as part of a "cover tape" on Your Sinclair magazine.  Surpassing some lower end commercial titles in quality, Batty became a cult favourite and was later given its own budget retail release. 
Apart from the mainstay mechanics of Block-Breakers of the day (long bat, multi-ball etc), Batty memorably included magnets on the play field which influenced the path of the ball, in what for 1987 standards amounted to "reallistic ball physics"