Sunbeam, being the overly positive and friendly bear that he is has convinced the aliens that bears and aliens can live in peace, and tonight they're exchanging gifts as a sign of trust: the aliens have brought Sunbeam a cool laser sword and Sunbeam is giving them... Naughty Bear! Uh oh, I guess it falls upon Naughty to go and seal the deal.
The goal is to kill Sunbeam with the sword Ambassador Xamari is holding.