Big Bertha is a character in Frogger: The Great Quest.
Description[]
Big Bertha the Evil Witch is the hoot of the Dr’s. Castle! She likes to talk up her powers, but has plenty to back up her words. She spends most of her time brewing up trouble in her kitchen, and is always looking for extra ingredients such as frog’s legs!
Big Bertha is a witch that resides in Dr. Starkenstein's Castle. Like Dr. Starkenstein, she also needs frog legs for something. She attacks Frogger when he lands in her room but the Fairy Frog Mother comes in and fights her, giving Frogger a chance to escape. She also appears at the end of the game saying "I don't think so" when "The end" appears.