From the Super Mario Wiki
“Good day. The name's Nello...PUNCHINELLO!”
Punchinello is a boss encountered in Super Mario RPG: Legend of the Seven Stars. He mainly uses variations of Bob-ombs in his battle. Personality-wise, Punchinello is absolutely insane and throws temper tantrums very often. Punchinello lives in the Moleville Mines. When one of the seven Star Piece crashed into the mine, he made it a possession for himself. Punchinello also wants to be famous, according to his wish on Star Hill and his Psychopath thought. When Mario and his allies arrive in Punchinello's area looking for the Star Piece, he thinks he will become famous if he can defeat them and engages them in battle.
If Mario walks up in front of him, he will shove Mario with his arms, sending Mario back into the other room. Thus Mario must be behind or near the side of Punchinello to start battling.
When battle starts, Punchinello throws Micro Bombs at Mario, which can explode after a set amount of turns. In battle, Punchinello attacks with his fist, punching one of Mario's party members. Punchinello also uses the attack Sand Storm.
Punchinello only uses four varieties of Bob-omb to aid him in battle. Each variety will appear after the boss takes enough damage. He first releases four Micro Bombs, then four Bob-ombs, and then three Mezzo Bombs.
After Punchinello is defeated, he summons a King Bomb which explodes and squishes him while covering Mario and co. in dust. After cleaning themselves off, the heroes take the third Star Piece and venture deeper into the mines.
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