idea: for the character, what if there were different headbands that changed your dash? (and maybe there could be different chips or something for the turret to change it's ai, that could be cool)
diffrend characters can be diffrend colors like green or light blue with diffrend starting wepons and the diffrend macanics can be with the diffrend turets. What if you made a support turret that if you shot through it the bullets get stonger or if you dash through it you get a shield or someting like that