- Sub-zero blast: The gun shoots and ejects a powerful blast of particles at presumably below 0°C.
- "Dick Grayson" (fake reality)
- In the DC comics, the term Cold Gun has been applied to many different items. The first Cold Gun belonged to Icicle and debuted in All-American Comics #90 (October, 1947). The second Cold Gun belonged to Captain Cold, and debuted in Showcase #8 (June, 1957). The third and best-known Cold Gun belonged to Mister Freeze and debuted in Batman #121 (February, 1959).