Weezing

Weezing appeared in 1996 video game called Pokémon Red & Green. Weezing is a Poison Gas Pokémon. Rotting food gives off a noxious gas that attracts Weezing. Its twin body take turns inflating and deflating to keep its poisonous gases churning.

Weezing is a much more bulky and large version of its pre-evolved form Koffing. After evolving from Koffing, Weezing gains a secondary (although albeit smaller) head. The larger primary head has two fang-like teeth protruding from its lower mouth and two flat teeth protruding from its upper mouth, as well as a skull and crossbones marking. The smaller head has a simple frown and a circular marking. Weezing also has multiple pores surrounding its body that releases poisonous gases.