Indeed, Sun Wukong had long hoped to encounter a formidable opponent against whom he could fight with all his might. Yet, this wish remained unfulfilled for a long time – during the upheaval at the Heavenly Palace, his adversaries were either too weak or too strong for him to shake.
Only Erlang God could put up a fight against him, but he was then ambushed by the Supreme Elder Lord and the Howling Celestial Dog. Later, during his journey to the West, none of the demons and evil spirits he encountered were a match for him.
Finally, today, Sun Wukong got his wish. Although he did not understand why a Mirror Illusion Technique could be so lifelike, Sun Wukong no longer cared. As long as he could enjoy a fierce battle, he didn't care about anything else.
Some people are born to battle. A life without combat is utterly meaningless.