The Giant Pink Mutant Baby is Dead!

It has only taken me 13 years to beat the 2nd(!) last boss of Playstation game, Parasite Eve 2. Though in fairness to myself, for the majority of those 13 years I had discontinued playing PE2 (or any video games) in the belief that I would never be able to kill the hideous pink baby. But a restless spirit and a desire to kill fictional mutant babies have led me to triumph. Persistence, incredible skill, and advice from the internet, have paved the way for my glorious victory.
(Gameplay hint: When the creature's core opens keep shooting at the core with grenades, and keep maxing out Aya's health - blasts from the core are deadly).

I have documented my greatness below-

Giant pink mutant baby at beginning of battle:

The battle has been bravely fought and won. Victory (and Ringer's Solution) is mine:

Giant pink mutant baby is toast. Or, more correctly, it's a puddle (the white-pink area at bottom right of screen is what remains of the baby):

Now I just have to kill the super final boss, Parasite Eve... gah!...see you in another 13 years...