Cobra Kai: The Karate Kid Saga Continues

As you defeat enemies and complete Karate Challenges, you will earn coins to use towards purchasing your base Dojo/Personal Skills and subsequent upgrades to those skills. Each skill has a branching path near the end of the chain, so look at each move's effect to decide which one works best for you. If you don't like the way you spec out a Skill, there is an option to reset your all your Skills for a fee.

Once you purchase all the upgrades for a Skill, there will be one additional level to unlock before that skill is Mastered. Each Skill's Mastery requirement will be different, so be sure to read the description of each to make sure you're correctly working towards your goal.

You will need check on your progress periodically as the game doesn't notify you when you fulfill the Mastery requirement for a skill. Once it's at 100% done, hold down to unlock the Mastery level as if you were purchasing it. Once you do this for four different Dojo or Personal skills, the achievement will unlock.