Hello Planetminecrafters

So this is my first Blog on this amazing site. :D
Yesterday I was realy bored and then I downloaded the Area 51 Project and played on this World my Difficulty was on Hard and everywhere were Creepers , Skeletons , Zombies and Spiders.
I died many Times and later I saw this blue shiny Creeper I dont now what for a Creeper that was...

...I hope someone can Help me and tell me what creeper type this is ....

Pls Comment and rate ...