I can respect making a guest character series, but Warriors All Stars wasn't their best work. I wont call it bad though. It had a pretty lackluster mechanic in the 5 person formations and cheerleader stuff. Neither really resonated or felt like it was too exciting (though the formations held potential to go further). I think level structuring may have hurt All Stars. The way you can progress the story from anyone's perspective you wanted to start as made it a pretty non linear design and caused it as a whole to feel more flat with less properly built moments to it since any battle could potentially have been entered into from a different point in story depending on who you chose to start with. Warriors All Stars has potential but it needs some mechanical improvements and a more traditional story mode approach.