Defeat Helmeppo.

Complete the Navy Base stage and recruit a new party member.

Collect all coins in Navy Base.

Defeat "Axe-Hand" Morgan in Navy Base on hard difficulty.

Defeat Mohji.

Complete the Port Town stage and recruit a new party member.

Collect all coins in Port Town.

Defeat Captain Buggy with "Gumo-Gumo Double Barrel."

Defeat Buggy in Port Town on hard difficulty.

Obtain the "Gumo-Gumo Ballon" Special Attack.

Defeat Jango.

Complete the Syrup Village stage and recruit a new party member.

Collect all coins in Syrup Village.

Defeat Captain Kuro without using "Gumo-Gumo Double Barrel" or "Gumo-Gumo Axe."

Defeat Captain Kuro in Syrup Village on hard difficulty.

Defeat Gin.

Complete the Baratie stage and recruit a new party member.

Collect all coins in Baratie.

Chase Don Krieg without taking any damage.

Defeat Don Krieg in Baratie on hard difficulty.

Raise your maximum Life-Points.

Defeat Kuroobi, Hachi, and Chew.

Complete the Arlong Park stage and recruit a new party member.

Collect all coins in Arlong Park.

Beat Arlong's second phase without taking damage.

Defeat Arlong in Arlong Park on hard difficulty.

Increase Max Power.

Obtain the "Gumo-Gumo Spear" Special Attack.

Defeat Tashigi.

Collect all coins in Rogue Town.

Defeat Captain Smoker without any help from your crew.

Defeat Captain Smoker in Rogue Town on hard difficulty.

Complete the game.

Complete the game on hard difficulty.

Obtain all treasures.

Score 50,000,000 points.

Score 200,000,000 points.

Obtain a new power.