beyond question. The very first line the hero speaks contains a play on
words:

A little more than kin and less than kind.

The fact is significant, though the pun itself is not specially
characteristic. Much more so, and indeed absolutely individual, are the
uses of word-play in moments of extreme excitement. Remember the awe and
terror of the scene where the Ghost beckons Hamlet to leave his friends
and follow him into the darkness, and then consider this dialogue:

_Hamlet._ It waves me still.
Go on; I'll follow thee.

_Marcellus._ You shall not go, my lord.

_Hamlet._ Hold off your hands.

_Horatio._ Be ruled; you shall not go.

_Hamlet._ My fate cries out,
And makes each petty artery in this body
As hardy as the Nemean lion's nerve.
Still am I called. Unhand me, gentlemen.
_By heaven I'll make a ghost of him that lets me._

Would any other character in Shakespeare have used those words? And,
again, where is Hamlet more Hamlet than when he accompanies with a pun
the furious action by which he compels his enemy to drink the 'poison
tempered by himself'?