Can you play as king mickey all through Kingdom Hearts and if you can can you tell me how

sorry no but........... there might be a codebreaker code to play as him im not so sure about it I agree, but however at the end of the game of kingdom hearts 2, if you die,you have the king with you and he will some in and you can fight as the king and press triangle to save Sora but then he goes off to fight other enemies......