The Metamorphic Cannon is a Heavy Machine Gun added in the Winter Camp 2018 Update. It was available as the final prize for the 4th trial of Winter Camp 2018. It has a passive skill that allows it to change its ammo type depending on what head you have equipped.
- This is one of the two heavy weapons not having auto-aim, the other one being the Incinerator.
- This weapon is very similar to the Heavy Maskaleon. however, that weapon featured only poison, fire, energy/healing and normal ammo.
- The Santa Heads used are: