Mortal Kombat has been such a massive franchise over the years, and it’s also known for featuring several different crossovers. Plenty of IPs get represented in the game, and it’s never known what character might pop up next. When NetherRealm Studios unveiled Mortal Kombat 1 , fans were likely speculating which guest characters could show up in this installment. Today, we’re finding out that the co-creator of Mortal Kombat , Ed Boon, was at one time an attempt to get a crossover with The Walking Dead .