A device used to decode a Coded Box. When used, a random weapon in Top 50 list can be obtained for permanent or period of 7, 30 or 100 days. 15 Mileage Points will be awarded upon use.
- South Korea: 29 December 2016.
- Taiwan/Hong Kong: 3 January 2017
- China: 4 January 2017
- Japan: 18 January 2017
- Indonesia/CSN:Z: 8 February 2017
- Korea (Update August 2017)
These weapons are the "special guests" that only appeared during their first release and removed two weeks afterward. The weapons return after 6 months of its initial release and available permanently afterwards. (except for Red Dragon Cannon which is only available for 2 weeks).
- Top 50 Decoder