In the Dam level, there is a blue metal trapdoor on the floor in a guardhouse that serves no purpose in the final game. Many believe it was part of an older objective that was taken out of the game. Some speculate that Bond previously had to retrieve his tracker bug for the mission in this hatch, since the message "Picked up a bug" can be found in the game's memory but is never used in the game. Others speculate Bond previously picked up explosives here for a lost objective requiring players to blow up the truck. Still others believe it was merely a quicker way to the comms room below the dam, since it is almost directly above it. It's true purpose remains a mystery.