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This page contains the sandbox edit history from July 2005 to shortly after the [[Wikipedia:Administrators' noticeboard/IncidentArchive355#Apologies everyone...|attempted deletion disaster of 2008]]. For other history (listed in chronological order), see:
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*[[Wikipedia:Historical archive/Sandpit]], another early ___location for testing (it was then at the title Sandbox)
'''U-Two''' is a monster who can copy the memories of anyone it meets. It uses these memories to develop a strategy with which to beat its foe using its plethora of mechanical weaponry. It menaced the [[KND]] in "Double the Trouble" when it was accidentally freed from an encasement by [[List of other Codename: Kids Next Door operatives#Numbuh 86|Numbuh 86]] while she was chasing former KND operative Numbuh 600. Numbuh 600 joined Numbuh 86 and the Sector V team for one last battle, helping them to defeat U-Two, even though he was decommissioned shortly afterward. U-Two's name is a pun on the Pokémon [[Mewtwo]], who was cloned from [[Mew (Pokémon)|Mew]], a Pokémon who can take the shape of any other Pokémon.