to be able to sweep you need to finish that stage in the previous day with full HP otherwise it doesn't let you sweep try using a team with shields and kill everyone at the start of round 2 before they can do stuff . i used gaara , kankuro gnw , naruto 3* and WB asuma to do win first 9 rounds without losing hp and i can sweep them now. Winning stage 10-12 with full hp doesn't work but it does change your opponents for the next day. This post was last edited by Haru no Owari at 2017-1-5 16:57

it is strictly full hp i just recently finished my 9th fight with full hp usually i would lose 18-52hp and only today i could sweep all 9 , i'm on a newer server