Is Rockstar Punched suppose to be carbonated?!

I was wondering if anyone has ever drunk "Rockstar Punched" It comes in a plastic bottle and I've been drinking Guava and Mango Passion Fruit flavor but I noticed after a while that there was no carbonation. Is it suppose to be like this? Is it a juice or more of a soda? There's no fizz at all but the bottle says carbonated in the ingredients? Anyone know? I could be drinking old flat energy Poison!!