Big Tuna

About

Big Tuna is the final boss in Dog-O. He tries to lure Jellybean aboard his submarine with promises of riches. You need the Black Belt (which provides the Defend combo to all 3 players) to beat him, which Sensei will give you if you talk to him immediately before fighting Big Tuna.

Defending

Big Tuna will hammer his staff on the ground to let you know he's about to blast you with his staff. You need to defend quickly, anyone not defending will be killed.