The Nether Creeper, also known as the fire creeper, this mob is found in the nether, but also, it will appear in the normal world. The nether creeper is red, orange, or any other fire color, and are impossible to find in lava or fire. They only spawn in Hard or Hardcore mode. They have a much larger blast radius, and every block touched by the blast will burst into flames, this includes the player or other mobs! They like you.
The nether creeper Will follow you like herobrine and just want their own entrance.