Amongst some of the more memorable animations in Battle Chess when one piece takes another piece out:

Castle takes Queen: The castle (which morphs into a huge stone golem) simply gobbles the Queen up.

Knight takes Knight: In the tradition of Monty Python, the loosing Knight bravely fights on as his limbs are chopped off.

Pawn takes Knight: Pawn rebalances the odds by kicking the Knight in the cojones

Queen takes Queen: A bitch fight ensues with slapping and cat sounds.

Castle takes Pawn: Pawn stares at the stone golem then drops his pike, hoping it will leave him alone. Ho ho ho ! bellows the golem, as he drives the pawn into the ground like a piledriver.

A Dutch company has put out a version of Battle Chess where pieces make love with each other rather than fight. See