Ni Hao!
The Monkey King, Sun Wukong, is a main character from classic Chinese mythology. His story was originally told in the Song dynasty epic novel: Journey to the West, yet his characterization has been used in many subsequent stories and adaptations. In his original incarnation, Wukong is a monkey born from a stone. Through Taoist rituals, he acquires superhuman abilities such as unfathomable strength, speed, and agility. He is also capable of 72 individual transformations including myriad animals and objects; Wukong is, however, uncapable of transforming his tail during his changes. His individual strands of hair can spring forth as clones of the Monkey King, or even transformed into one of the various weapons and other objects which the King can change into, himself. Wukong also makes use of various spells, commanding wind and water as well as conjuring magical protection for himself against demons.
Probably the most popular adaptation of Sun Wukong can be found in the character Son Goku, of the manga and anime series: Dragon Ball.
...He's the little guy on the right, in the image above.