To defeat Ugallu for good, first acquire the Dimensional Key.
- Ugallu hops around the platforms in the room, doing 25/50 damage on collision.
- Ugallu turns blue and quickly flies horizontally through the room, doing 22/44 damage on collision.
- This attack can be blocked with the Silver Shield.
Its head is vulnerable, but the rest of its body isn't.
- Ugallu has 60 health.
- Use a shield whenever it turns blue and flies back and forth. The shield will not block Ugallu when it returns however so stay either above the middle platforms, or above the side platforms.
- Just wail on it with your preferred melee weapon until it dies