| Achievement | How to unlock
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|---|
| A Rank | Achieve at least an A Rank and unlock the Crow Launcher.
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| B Rank | Achieve at least a B Rank and unlock the Crow Bar.
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| Checking in on a friend | Talk to Arthur when he's waiting in the car.
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| Complete | Complete the Game.
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| Flamethrower | Find the flamethrower.
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| Magnum Revolver | Find the magnum revolver.
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| Med Kit Pro | Upgrade the potency of the med kits.
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| Quizmaster | Get a score of five or more on the Mermaid Quiz arcade game.
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| Running Shoes | Find the secret running shoes.
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| S Rank | Achieve an S Rank and unlock the Crow Wings.
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| Secret Hunter | Find all 15 hidden secrets.
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| Secret Map | Find the secrets map.
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| Shotgun | Find the shotgun.
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| Thorough | Defeat all four optional mini-bosses.
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| Wishes Granted | Upgrade all four weapons.
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