yes you just need to be good just keep attacking until you overdive is ready and don't heal until the end and ther you go!
to beat him use chaos sharo, then when your GB is filled up,use it
When an Assassin beat Sonic, X and Zero give Sonic an Advancement Procedure somewhere.
you fight it
Yes.
go to the village that you got arc
72 hours
You get it after you beat Hecatoncheir in the Cave of Shadows.
You don't beat him. You offer him dried meat, and he'll help you.
Try to find the boss's weak spot in the final level of the game
weakness is holy
you unlock a alternitive ending
Have Kain jump on her when she turns into a tornado