In terms of coolness, I would have to agree with Zhaz, being able to turn the menacing enemy army come to lay waste to your base into harmless little pink PIGS and then have them for dinner, just beats everything IMO.
(Of course, it would also be quite amusing, later into the game, to order the little piggies to go back to their own base and be slaughtered by their own... Muhahaha, that would be truly evil!)
[This message has been edited by amicus_curious (edited 08-02-2002 @ 10:26 AM).]