Big Bertha (Bill Blaster)

Not to be confused with Big Berthas from other Mario games.

Big Berthas are enemies that appear in  Super Mario RPG: Legend of the Seven Stars. They are stronger versions of Blasters and they are only found in Bowser's Keep.

Battle
In battle, Big Berthas mainly attack by firing multiple Bullet Bills that can rack up on damage. It can also use a deadly move called Blazer that may automatically knock out one of Mario's party.

Tips
Big Berthas have very high defense but low magic defense so it is recommended to use magic attack espically Mallow's Thunderbolt (as thunder is their weakness).

Trivia

 * Big Bertha's name comes from another cannon made during World War 2.