- "Okay, get to the next crate my butler hid somewhere in this exhibit. It has a part of the magical map inside it. Mind you, knowing him it could just as well have a scone or a spoon in it. Great sense of humour. Fatal for you if he has though. Mesmer's worms need the chop, but try and be nice about it."
- —Mission Description [src]
Brain Freeze is the seventh mission in Worms Battlegrounds.
In the mission, the player has to kill all enemy worms while attempting to get secure a crate at the end of the map containing the next map piece. The map is filled with booby traps and puzzles that the player has to find their way around. The UFO is also used for the first time in the game.