At the final level you will encounter a knight named Ashley (Ash) Clarons. In order to defeat her you must turn yourself into a squirrel.
Demise
you fight it
Beat every stage and boss to reach the final story, and beat it. Devil Doom is the final boss.
Try to find the boss's weak spot in the final level of the game
Beat the final boss, Yami, in the Ark of Yamato.
Play through it and beat the final boss.
beat bellum, the final boss
Beat the final boss.
By defeating Vaati, the final boss.
you will beat the game after you defeat the final boss in world 8
of course it's beatable. beat the final boss and you beat the game.
Kill all the zombies in each stage and beat the final boss