SPOILER ALERT: This article contains major spoilers for “Mortal Kombat II,” now playing in theaters. Writer Jeremy Slater grew up playing “Mortal Kombat” in his local arcade and spent hours mastering the violent fighting game on the Super Nintendo Entertainment System and Sega Genesis. He was a fan of the original 1995 movie, directed by Paul W. S. Anderson, and now, more than 30 years later, he’s penned the script for the big-budget adaptation “Mortal Kombat II.” The sequel, which opened to $40 million at the box office this weekend, continues the story from the 2021 movie, which was released amid the pandemic simultaneously in theaters and on HBO Max. The first movie had its fans, with many praising the gory fight scenes and accuracy to the video games, but it left out one key component: the actual Mortal Kombat tournament. With the sequel, Slater doesn’t waste time kicking things off with the battle-to-the-death showdowns and nostalgic characters that made the games so popular.…