Laboratory - Blox Fruits (Hot and Cold)

The Laboratory is a high-tech interior nestled on the island Hot and Cold, in the Second Sea. Clean design, technological atmosphere, interactive elements: the place plays a limited but essential role, since it's through it that you access raids. Its heart is the Color Code Panel, a wall-mounted box whose correct color sequence opens a secret door.

How to get it

The Laboratory is located inside the tower with the central dome of Hot and Cold, in the Second Sea. Its entrance is not visible from the island's exterior structures: it is deliberately hidden within the mountain, making it easy to miss on a first visit. Recommended level: 1100+.

The Color Code Panel

It's a wall-mounted interface composed of several luminous colored buttons arranged according to a fixed pattern. Each button corresponds to a color, and clicking on it changes the screen's color.

The sequence to compose is Red, Blue, Green, Blue (🟥🟦🟩🟦).

Once the correct combination is entered, a door opens behind the panels and leads, after a steep slope passage, to the raid room, where you can host one or join one.

Important detail: you must have empty hands to be able to click on a panel.

Good to know

It's one of the rare places in the game that brings together multiple interactive systems in the same interior space.
The Color Code Panel requires neither combat nor movement skill: you simply need to observe and remember a color sequence.
Unlike most Second Sea locations, the Laboratory contains no enemies or combat zones against NPCs.

History

Update	Change
29	Hot and Cold and the Laboratory remade from scratch
10	Release of Hot and Cold and the Laboratory

Update history

Island : Laboratory·Released : Update 10

Update 29 23 décembre 2025 Adjustment
- Hot and Cold and Laboratory was revamped.
See update 29
Update 10 vers 2020 Release
- Hot and Cold and Laboratory was released.
See update 10