Quite who the hero Blagger may be is not detailed in this game or why the son of Mr. Blagger should be called Slippery Sid who's real dad would appear to be another person called Roger the Dodger. It's all most confusing. What isn't so muddling is that Slippery Sid, attempting to out-emulate his famous dad, is working as an espionage agent deep inside Spectrum Security HQ on a task to collect all the golden keys dotted around the large scrolling complex. Quite why he should be doing this is not explained either and gives the feeling you've just walked into an exciting TV serial in the middle of episode three!
Son of Blagger is a large maze complex with platform overtones along the lines of Jet Set Willy or Monty Mole, although it tends to resemble the latter more. Within rooms, which are of various shapes and sizes, platforms are connected by downward escalators, upwards moving ladders or linked by dissolving floors. Various monster robots prowl the premises on unvarying paths of destruction, guarding the keys. The screen 'window' scrolls periodically to keep Blagger's Son in the middle of the action. There are several levels to play through with a time limit imposed by falling air supply.