Have fun with this action game where a monster needs your help to evolve and dominate the world! Play now and have fun with Monster Underground, a spectacular new game where an alien monster establishes itself on earth and needs your help to evolve and become one of the greatest monsters on earth !!!! Monster Underground,action game,monster evolution,domination game,alien monster,survival game,monster shooter,evolution game,earth domination,mobile game,adventure game,monster empire,action,strategy,control,survive,best monster in the world,play now