This item can only be worn around Halloween or during a Full Moon; at other times of the year, it does not appear in gameplay, unless the server has Halloween mode enabled. However, it can be equipped at any time and can still be viewed on the loadout screen even when it is not visible during games.
The Hyperbaric Bowler was contributed to the Steam Workshop under the name "The Brain Bowler".
- The Hyperbaric Bowler was added to the game.
- Updated the materials for The Hyperbaric Bowler.
- Hyperbaric refers to either a gas that is above normal pressure or something pertaining to such a gas.