The Gadget Room is a room in Club Penguin Rewritten located in the HQ. It can only be accessed in the PSA Training Missions. Agents were first introduced to the Gadget Room in PSA Mission 4: Avalanche Rescue, and it has been used in almost every mission since. In its first appearance, you must ask G to unlock it using the eye scanner. This suggests that it was a very secret room that only a select few agents could enter. The Gadget Room was destroyed in The Veggie Villain during the Popcorn Explosion. It is unknown if it was rebuilt when the HQ was.
Only Gary can unlock the room, as only his eyes match the eye scanner.