Slow zombies may be a cliche, but I'd take them any day over having to figure out how to survive against super agile, parkour zombies—like the ones in this video by ronniestreetstunts.
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Though maybe they'd be too busy showing off their flippy moves to actually pose a threat? Hmm.
Zombie Parkour - The Flipping Dead [ronniestreetstunts via Laughing Squid]