'Fun kids workout box challenge video!  Do you have what it takes to be the Ultimate Ninja Warrior Fitness Champion!?! Only one way to find out. Join Jackson in this karate box challenge to see if you have what it takes to complete all 9 fitness challenges! Made for kids! Enjoy, and GOOD-LUCK!  #excercisesforkids #kidworkout #karate Watch more kid friendly videos here: https://www.youtube.com/c/MoritzMadness' 

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