Slap Shot is a Sega Master System hockey game. While details on the original release's specific gameplay features are limited, it's expected to offer a simplified hockey simulation.  The game likely focuses on fast-paced action with top-down or side-scrolling perspectives. Multiple releases across Europe and the USA suggest reasonably broad distribution by Sega for its time.  The developer would likely have been either an internal Sega team or an external studio contracted for the project. 

Slap Shot (Europe)

Simpsons, The - Bart vs. The Space Mutants (Europe)