Pigron

Pigron is a Hardmode monster found in Underground Biomes. It comes in multiple colors (depending on which spreading biome it's in) and has a special ability to turn "invisible". It does not truly turn invisible, only highly transparent, and can be seen on close inspection. As one starts to attack, it will become visible again. In the invisible state it can fly through walls and will continue to follow players until killed.

Trivia

 * The name is a portmanteau of the words "Pig" and "Dragon". This was confirmed by Cenx in the IRC.


 * Pigron looks very similar to Pommy Dragon from the game "Bomberman Tournament"; it is unknown whether they are related.