do you keep most/all of your ninja at close to full health up to level nine?? this is pretty important as the first 9 stages are the easy level and you shud try not to lose much health on those

Also what i usually prefer is Neji rather than hinata in the trials..sometimes active initiator like neji who can control enemy works better... with neji, you aim to accupunture enemy who can potentially deal the most damage to your team (like fire main).. it is wise to stop ninja that cause damage over time ( ignite/poison ) from using their skill as these skills can really bring down your health in early levels.. Since you have Guy as well who can interrupt skills, use this at your advantage to interrupt skills effectively..Since your opponents are just a bot, just try a few times to look at their skill releasing pattern and counter it with yours