This content is exclusive to Pixel Gun 3D. It isn't in Pixel Gun World!
Effects are a type of debuff, in which certain weapons, gadgets and pets possess. The first debuff, Poison, was introduced in the 11.0.0 update, making the general introduction of the effects in the 11.0.0 update. There are currently 3 effects in the game. They are poison, bleeding, and burning.