Radroach, or commonly know in fallout 3 is a pesky little radiated roach, getting the prefix Rad, as for radiated. it is a commonly encountered creature and is usualy dealt with in a single high-flying bullet to the head.
RadRoach , "RAGL RAGL RAGL@!#@!#!@"
Human , "Lol, wtf."
*'Caps 'da roach*