The reason for the mutated zombies? To be completely honest with you: because we thought it would be cool. This entire series is a not-so-subtle love letter to various zombie stories/movies/games, so the idea of having a super mutant zombie ala Left 4 Dead's special infected was an idea that naturally came up. I suppose it kind of is a plot device in retrospect... but hey, we already had that random zombie shark in the first movie, so I guess we sold out pretty early on.

Back to the mutant zombie, this actually isn't the first appearance of it: back Day of the Madness, there was a silhouette of a giant zombie near the end, which was intended to be this guy (or one of them, anyways). He was supposed to show up in Dusk, but ended up getting pushed back into Overtime instead.

The mutant zombie-- which we call the Sample-- was the result of GenMorto's testing. As with most evil science companies, the scientists stupidly decided that creating a giant zombie was a good idea. There was going to be a small flashback sequence about their creation, but we were cutting it too close to the deadline to do that.

Instead, we settled for a bit of environmental storytelling regarding the Samples: when they first enter the giant lab chamber, there's two huge test tubes/containers. One's already broken open (with a ton of dead bodies and smashed up scientists nearby), which was obviously the handiwork of the Sample that the biker gets into a fight with. The second one, still inside its container, breaks out after the glass gets cracked during the biker fight, and later makes a beeline for the helicopter at the end.

Um, no. This is OC and any possible similarities is totally accidental x]