Mr. Goon is an enemy from Final Fantasy X-2.
He is no threat to the player and can be taken down by various methods.
One notable "Goon", caught via the Creature Creator system in the International or HD Remaster versions, is named Blue. Originally a thief from Besaid, Blue had to join Leblanc Syndicate when his attempt to rob Leblanc forced him to hide within her group's ranks. He got his chance to steal during the concert at Luca. A month later, seeing Red and Black fighting before deciding to be friends, Blue decides to join their group.