Hi guys,i dont know if anyone needs it but i thought to make this guide on how to try and to beat final trial instance in chapter 8 for 3 stars as F2P,key things here are 3-4 steps,1 is to get ninja with debuff reflect passive(kurenai or kakashi beheading sword or pain ningendo),2nd will be trying to get your power to 50K+ cause any lower then you will be killed instantly,tried many times on 45-48K,died too quick sadly :( 3rd step will be 2 ninjas with strong AOE mysery with 30 hit chase(like kabuto snake cloak,itachi anbu or roshi) and 4rd step is confusing one,its to use water main for poison tai/healing,and if you guys decide to use kurenai full breakthrough then use her for chaos.I used basic lineup of roshi/fuguki/kurenai/water main.Thats all,good luck with getting free coupons :)