Ryan Wombold writes: Discerning gamers have used just about every tool, weapon, gadget and vehicle to murderize zombies over the years. With their new iOS game Zombies and Trains, the fine folks at Dragonhead games dare to ask, “Why not the click-clacking wheels of our beloved rail system?” “Well,” you would probably respond in this hypothetical and increasingly ridiculous conversation, “because you can’t just point a train where you want it to go. Also, who are you and why are we having this ridiculous conversation?” Well, Mr. No Imagination, you don’t have to point them anywhere if you just run an intersecting series of tracks through a stadium and then put a gold painted brain in the center for the zombies to shuffle towards. Go ahead. Pick up the shattered pieces of your mind. I’ll wait right here.