Kung Fu Kid is a beat-'em-up developed and published by Sega for the Master System where the young kung fu master Wang must defeat the evil Madanda and his henchman Kyong Shi to avenge the death of his master. 
It follows the common beat-'em-up scheme: The goal is to make it to the end of each of the 7 stages, where a boss fight awaits. Enemies continually pour in to challenge Wang. 
GIF