Keys were items that allowed the gang to leave the room and enter the next one. Each of them were located at the end of the room.
Keys stopped being used during Season 2, where the "rooms" were changed to being pocket dimensions rather than just rooms.
Gallery of keys
The Key of Heat, the key to exit The Hot Room
The Key of Cool, the key to exit The Cold Room
The Key of Gaming, the key to exit The Video Games Room
The Key of L.E.A.F., the key to exit The Room of PvZ
The Key of Minecraft, the key to exit The Room of Minecraft
The Key of Angry Birds, the key to exit The Room of Angry Birds.
The Key of Noobs, the key to exit The Room of Roblox
Key of Dream Island, the key to exit The Room of BFDI.
The Key of Autobots, the key to exit The Room of Transformers
The Key of Portals, the key to exit The Room of Portal
The Key of Squids, the key to exit The Room of Splatoon
The Key of Gobots, the key to exit the Room of the Challenge of the Gobots
The Key of Pokémon, the key to exit The room of Pokemon.
The Key of Terraria, the key to exit The Room of Terraria
Key of Racing, the key to exit The Room of Mario Kart
The Key of Determination, the key to exit The Room of Undertale
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Trivia
- Keys don't actually appear until Season 1b.
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