International Karate+ is a very epic game for me. The graphics and controls became better and better of Commodore 64 games. The music is one of my all-time favorites.
YouTube:
Information:
https://en.wikipedia.org/wiki/International_Karate_%2B
https://www.c64-wiki.com/wiki/IK%2B
http://www.system3.com/games/international-karate-plusc64/