When a fist separates from its body and flies through the air. Often used by [[mecha]], and in [[Mega Man_(series)|]].

h4. See also:
* [[mazinger z (mecha)|Mazinger Z]] (Titular mecha from the 1972 [[Mazinger Z]] [[super robot]] manga and anime where it actually started)

* [[Single Mechanical Arm]]/[[Mechanical Arms]]

* [[Punching]]
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