Here is the full list of all 47 Cobra Kai: The Karate Kid Saga Continues achievements.
Finish Daniel with Johnny's Cobra Ultimate
Complete Karate Challenges group Surgical
Complete Karate Challenges group Karate Champion
Complete Karate Challenges group Environmentalist
Complete Karate Challenges group Specialist
Finish any Story level without being hit
Unlock 90 Collectibles
Smack Kyler's face into the floor with a ground attack mounted on his back
Parry 10 attacks without being hit
Complete Karate Challenges group Combo Freak
Finish a Speedy goon with a running attack
Complete Karate Challenges group Skill Master
Upgrade 4 Skills to the maximum (including Mastery)
Beat ???? and reveal the true story
Hit a Crane Kick on Kreese
Start a second Campaign with the other dojo after finishing the story with one dojo
Start a Miyagi Do Campaign
Finish Johnny with Daniel or vice-versa
Complete Karate Challenges group Rivalry Dominance
Unlock 60 Collectibles
Clear all City Missions
Beat Yasmine using Tory or Sam
Beat Armand with Miguel's Jump Skill
Finish Tory with Sam or vice-versa
Finish Sid off with Johnny or Robby
Finish 5 Hippie Hipsters with Grab Attacks
Finish Robby with Miguel or vice-versa
Make all Tournament brackets nameplates fall off the panel
Upgrade any Skill to the maximum (including Mastery)
Unlock 30 Collectibles
Complete Karate Challenges group Warming Up
Finish Tom Cole with a Kick
Beat Cruz with a Special Punch
Buy 50 upgrades
Finish Demetri with Hawk or vice-versa
Finish 5 Big-Boned Skeletons while they are in the air
Finish 3 Baseball Bat Skeletons with a baseball bat or similar weapon
Get 120 Hits in a single combo
Finish an enemy smackin his face on the ground
Throw an Enemy into the Basketball Hoops
Complete your first Karate Challenge
Buy your first upgrade
Finish Mini Golf and Arcade level
Found your first collectible
Throw an Enemy at the screen
Finish off your first of many Skeleton enemies
Start a Cobra Kai Campaign