You go close to him, and he will take out a hammer and try to squash you. Make sure you Dodge these attacks without getting to far away. You know if you're too far away if he starts shooting. Anyway, after missing with the mallet, a target will drop from his eyes to his mouth. Attack the target, and repeat this process until his life bar is empty.
Chat with our AI personalities
You can't.You can only beat him as a boss twice.After that you can fight him again after you beat Tabuu in Boss Battles.
i have no idea
Beat every stage and boss to reach the final story, and beat it. Devil Doom is the final boss.
In Beat the Boss 2, you will need to upgrade the balloons first. Next tap the boss repeatedly to place the balloons on him.
i can beat the first part of it.