10 Video Game Bosses You Can Only Defeat With One Weapon

Initially, the fight against the Ultimate Being seems like a bit of a cakewalk. You're fighting a baby, after all, even if it is a monster baby - and it takes a decent amount of damage when you shoot it.

Then it has another phase. And another. And another. And then, all of a sudden, your bullets just aren't damaging it.

This is because the adult version of this Lovecraftian nightmare only takes one or two points of damage from any regular weapon, which - unsurprisingly - makes it impossible to kill through conventional means. Instead, you need to wait until Daniel nobly throws himself out of a helicopter to deliver you a special gift - bullets loaded with our hero Aya's DNA, which is the only thing capable of taking this fully evolved creature down.

And indeed they do, as these bullets deal a healthy 999 damage, meaning you can finish the fight from here pretty damn quickly.

While you do also blow up the boat you were on to finish off the Ultimate Being, this is more a matter of making sure it's gone for good - as when you go through a four phase fight, you want to make sure the thing you were fighting stays dead.