If you want to know what is the highest belt in Karate, it is a red belt. Players can get a red belt in Karate by mastering it through practicing and taking lessons. To practice and start Karate lessons, you will need to first age to age eight and then visit the mind and body tab.
Under mind and body, you will need to find a tab called Martial Arts. Under Martial Arts, you can start Karate lessons by finding practice karate under the listed arts.
When you start taking Karate lessons in martial arts, you will then need to keep practicing until you reach the highest belt. You do this by visiting the practice karate lessons option in martial arts under Mind and body until the game tells you have reached the red belt and have learned a new combat move.
That said, here's a complete list of all the belts you will need to obtain before you can get a red belt.
Once you reach the highest belt in Karate, you will learn the karate kick move, which can be used to defend yourself in attack encounters in the game.
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