Tuo-Kcalb is a robot created by Agent Xetrov. He is the negative robot version of Black-Out and is an enemy to Onega X and positive counterparts.


Tuo-Kcalb, Nortluv, Robot Oob -3, and the negative counterparts were all featured in Operation Infiltration II. In the mission they were accidently transported to the Positive Dimension by Agent Boo's Time Machine. Robot Oob -3 tells the negative counterparts that they are in the Positive Dimension. They decide they need to find Onega X but they ended up running into their positive equivalents.

Agent Oob traps the positive counterparts in a cage and they eat Chip Chip Hurray, Agent Vortex mocks the negative counterparts, which makes Agent Xetrov and Agent Oob get angry and they call in Tuo-Kcalb and Robot Oob -3 to attack the positive counterparts.

Later in the mission, they team up with Agent Batman and they end up finding their positive counterparts. However they see Agent Nightmare in his Nightmare ship and starts attacking the negative equivalents. Agent Xetrov and Agent Oob, however, get so angry they call in Tuo-Kcalb, Nortluv, and Robot Oob -3 but Agent Vortex and Agent Boo call in Black-Out, Vultron, and Robot Boo 3. The robots start to fight eachother causing massive destruction.

After the destruction, Agent Oob and Agent Xetrov tell Robot Oob -3, Nortluv, and Tuo-Kcalb to scan Omega X (Earth-616), but they'll have to take forever while Agent Boo tells Robot Boo 3 to scan Omega (Earth-616) which scans perfectly fine.

Suddenly an earthquake starts to rumble and everyone sees that the Omega Tower is slowly tipping over. Agent Oob and Agent Xetrov try to tell their robots to escape. He and all of the negative couterparts return back to the Negative Dimension when the Omega Tower was about to be destroyed.


  • Tuo-Kcalb along with Nortluv and Robot Oob -3 have a strong rivalry with Black-Out, Vultron, and Robot Boo 3.

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