The ElectroAcid Pig is a hybrid enemy.
Poison Pig + Electric-o-Pig=ElectroAcid Pig
The Pig is half Poison Pig and Half Electric-o-Pig
It can shoot lightning at incoming birds and anything that touches it will die. However its weakness is fall damage and the Big Brother bird. If you could get it to fall of a cliff that's you're best chance to defeat it.Its strength in Lightning is huge however a big brother bird is immune to that. It's strength in toughness is weak though.