Red Key
The Red Key is an item that has a guaranteed drop chance from the Dough King if the player has dealt 10% of the damage.
Usage
The Red Key is used to open the door to access the Cake Scientist.
- The Cake Scientist trades a Dough Raid Microchip for
1,000 or a Blox Fruit that costs 
1,000,000 or more.
Trivia
- If the player opens the door and rejoins without buying the raid chip, the door will be closed but they can still use Flash Step into the room and buy the raid chip.
- If the player loses the Red Key without opening the door while holding the key, they can still buy the chip even if they haven't unlocked the door by rejoining the game or using Flash Step inside the Cake Scientist's room (the door will automatically be opened if they rejoin).
- The player needs to do at least 10% (111,500) damage to the Dough King in order to get the Red Key.
| First Sea | Ancient Relic • Cup • Torch • Key |
|---|---|
| Second Sea | Core Brain • Fist of Darkness • Hellfire Torch • Hidden Key • Library Key • Water Key |
| Third Sea | Apple • Banana • Pineapple • Fruit Bowl • Fire Essence • God's Chalice • Hallow Essence • Holy Torch • Red Key • Sweet Chalice • Blue Gear |