Each Macross series usually deals with a different 'alien' species which befriends humanity, so far we've had giant humanoids (Zentraedi, SDF Macross), Transdimensional/Godlike Aliens (Protodevlin, Macross 7), furry aliens and Space Whales (Macross 7 Dynamite) and Insect Aliens (Vajra, Macross Frontier). Each series also expands the scope of the setting, from Earth/Solar system to multiple worlds to the galaxy itself. * Well, Grace O'Connor was almost completely robotic since she turned herself into a cyborg. So that's a start.