Mister Freeze's Cold Gun, also known simply as the 'Freeze Ray' or 'Cold Gun', is a piece of cryogenics weaponry which serves as Mister Freeze's signature weapon. Mister Freeze constructed his signature weapon shortly after the incident which left him unable to survive outside a subzero environment. His weapon is able to produce gusts of cold degrees below absolute zero, as well as coat objects in a block of ice, create similar-looking constructs or encase opponents in a frosty 'cocoon'.