Clumsy, unintelligent, childish, and pure goofy are some of the few words that describes Goofy. Aside from this he is extremely lovable and very charming which is shown when he confessed his love for Clarabelle. To his friends Mickey and Donald he is sometimes considered annoying but they still care for him and count him as a close friend.
It can be possible that he does not always enjoy being Goofy as his "How To" cartoons revolve around him trying out a new "pass time" and going to great lengths to accomplish it properly. This can also just be him wanting something to do when not around his friends. Many times he has been dumbstruck by women being the only one of his friends not to have a love interest at the time.
He has shown a level of intelligence as he is shown to be a superb sports player which provides the ability to follow tactics. He is also smart enough to raise a child alone and provide the best care and eventually see his child grow into a responsible adult. Goof has been shown to be embarrassed by his clumsiness at times.
At one point he tired of being a follower and bought a book about becoming a leader. He declared himself "boss of the day" and was in charge of Mickey and Donald. His power began going to his head and eventually got him into trouble. Mickey and Donald rescued their friend and he remembered his friends are more important than power.
Goofy appears alongside Donald and Sora in all of the Kingdom Hearts games. Goofy is Captain of the Royal Knights of King Mickey's court. He and Disney Castle's court magician Donald went out to search for the King, and ends up teaming with Sora for the rest of their journey.
Goofy along with Mickey, Donald and other Disney characters were membered Society, along as Scout and still get along with Sora whenever he around, he also helping the Ultimawielder while their first base was attacked and defeat Solaris.