Complex sentence: Slap Shot's game play is very similar to hockey games that came out in the 80's mainly NES's "Ice hockey" and Konami's "Blades of Steel" with the option of choosing to play an exhibition match or in a tournament.
Split into simpler sentences: Slap Shot's game play is very similar to hockey games that came out in the 1980s; mainly NES's "Ice hockey" and Konami's "Blades of Steel". This game allows the option of choosing to play an exhibition match or in a tournament.