Cave Story 3D
Format: Nintendo 3DS
Finding the Prinny Cap (Plantation Level)
the Plantation level, go to the "Rest Area". Once inside, go to the
bottom where the water is located. Move left through the opening in the
wall to reach the "Inner Wall" outside area. Booster 2.0 is required
for this location. Keep moving ahead until you find a door at the
bottom left with a wall between it. Go under the wall and boost up
until you reach the door. Use it to enter a "Secret Grave" with a large
"Prinny" statue at the center. Examine the sparkling object to get the
How to unlock and find Weapons: Complete the task to get the weapon.
How to unlock the Blade:
Defeat frenzied Toroko, then talk to king. He will ask that you avenge
him. He will disappear and something will take his place. Press Down to
get the weapon.
How to unlock the Bubbler: Get access to the Bushlands. Obtain jellyfish juice then go to the meeting room in the Mimiga Village and put out the fire.
How to unlock the Fireball: Obtained in the Bushlands when you talk to Santa after getting his key.
How to unlock the Machine Gun:
Defeat Curly in the Sand Zone. She will want to trade the Polar Star
for the Machine Gun. Note: Refuse her trade in order to get the Spur
How to unlock the Missile Launcher: Found in the treasure chest in the Egg Observation room in Egg Corridor (the second door with the save symbol).
How to unlock the Missile Upgrade: Defeat
Balrog in the Boulder Chamber and a treasure chest with the weapon will
appear. Note: If you already have the Missile Launcher, it will be
upgraded to fire new missiles.
How to unlock the Nemesis: Kazuma
and the Dragon will be on the Balcony. Go down a row to find a gap. Use
the Booster to traverse the gap and enter the house. Talk to Mrs.
Little then go to the Graveyard. Talk to the small character in the
grass and he will enter into your inventory. Return to Mrs. Little's
house. The small character will say "I'm home!". Talk to him in the
house and he will trade the Blade for the Nemesis.
How to unlock the Polar Star: Obtained at the start from the hermit gunsmith.
How to unlock the Snake:
Go into the Labyrinth Shop and speak to the owner. He will borrow your
Polar Star and Fireball and combine them into the Snake. This weapon's
rounds passes through walls. Note: You cannot do this if you have the
Machine Gun or Spur.
How to unlock the Spur:
Defeat the fish Boss. After appearing in the Reservoir, go to Arthur's
house. Professor booster will appear from the teleporter and give you
Booster 2.0. Note: Prior to this, do not talk to Booster in the
Labyrinth. Use the Booster to reach to the first cave and talk to the
hermit gunsmith. He will upgrade it to the Spur.
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