12. 'Mortal Kombat' (1992)
Mortal Kombat is infamous for its grisly finishing moves, known as "fatalities," where characters can be decapitated, immolated, eviscerated or electrocuted. It's also responsible for making the phrase "Finish him!" part of everyday language. For better or worse, the brawler broke ground when it comes to carnage in video games. It's the bloody granddaddy of them all.