Ex Game Final Boss

The reason I beat her so quickly was because I had very strong equipment and had many Medicine 4's and Revives. My weapon attack was around 530 and my armor defense was just over 300. My inventory was full of medicines.

"There's no such thing as stupid questions, just stupid people." -Mr. Garrison (South Park)

You're not alone, dude. I'm re-playing the game and saving all the plus-stat stuff just so I can make the ultimate weapon and armor.

When I'm done, I'll let you know :)