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Here is X-10, another robot in young humanoid's X series! This one was much like X-9 but also very different. It had tracks and two NXTs, could rotate its upper body on a turntable, and had no gun. Well actually it did have a gun, but young humanoid did not like the looks of it so he took if off.
Also built around this time were X-2 and X-3! Both mobile, X-2 using one motor and X-3 using two.
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And here, we face a very interesting and mysterious "hole" in my family line. We have:
X-1, (ME!!) X-2, X-3, X-5, X-6, X-7 and so on...............
But what about X-4? *Spooky organ music plays*