Concerning the Cartridge version :
Again, the major flaw was the too heavy use of the Hardwired sprites for the characters sprites (player or creeps) : those are DATA-heavy and slow to "animate" properly, as the 16 slots are too few for a proper animation with numerous framesor simply to feature enough enemies on the screen (the same probelm with [[Robocop 2 ( Cartridge )|Robocop 2]] yet this one turn to be more a platformer than a shooting-punks-game).
Yet the scrolling is quite decent, fluid and smooth.