they should also have a jutsu list for each character, like naruto has way more jutsu then what they give him, they should have a jutsu list option like for exampleyea good idea i mention those as well like being able to use summoning in awakening state
naruto: rasengan shuriken, regular rasengan, frog summon, clone technique, harem no jutsu, fart no jutsu, etc
kakashi: kumai, dog summon, chidori, fireball jutsu, water shark/dragon jutsu, earth mud wall jutsu, lightning clone, earth style headhunter jutsu etc
jiraiya: summoning different frogs, toad mouth jutsu, rasengan, needle jizo, toad flame bomb, fire raseangan, mega reseangan, sage mode oil fire wave lol , sage mode water pressure, etc.
you should be able to pick your jutsu, to keep the enemy on their toes.
they should also add in a stat raiser, or a leveling up system, like your own character you choose, leveled up, lets say you can get more chakra, more substitution bar, more speed, more power, etc but it would be hard to level up each time you do lol.