How do you use them?
Main menu on the bottom: Units -> Powerup Fusion -> select the character or weapon you want to boost -> choose how many cores you want to use and track the gold cost on the bottom left -> fuse
How do you use them?
Main menu on the bottom: Units -> Powerup Fusion -> select the character or weapon you want to boost -> choose how many cores you want to use and track the gold cost on the bottom left -> fuse