Rowdy Alien is one of the third mission targets identified by the Tokyo black sphere.
Judging by his name, he was most likely a rowdy alien.
Rowdy Alien was the name designated to one of two large temple statues. These were opponents who were assigned to the team by the Gantz for the third mission. After giving the team some problems, Kurono was able to defeat them with the help of his friends. He ignored it once it was down and defeated, letting someone else do the killing shot, thus he got no points for this one.
Abilities and Powers
Immense Raw Power: Rowdy alien is a somewhat powerful Alien. It's overall might is enough to easily crush a human being (That is not wearing a Gantz Suit). Though it's physical strenght isn't enough to easily kill a Gantx Suit wearer.
Weaknesses: It's huge size seems to be it's downfall as unlike it's size suggests it is very vunerable to the X-Gun and a couple of shots by one is enough to take him down.