Ragnastrike Angels

Both series are about girls growing to giant size to protect the world from aliens in short format episodes. While UG has 12 minutes episodes showing each other the girls taking turns to fight, Ragnastrike shows them all fighting together in 30 seconds episodes. 

They are both for advertising there respective games Both have little to no plot in place Just a cute girls doing cute things type for anyone that loves that Both short animes both aired/airing this season I would recommend this show if you love this type of thing or have played either games^^ 

Game-based anime about one guy and lots of girls which share the same tongue-in-cheek joke of "joining as one" in order to become more powerful and defeat evil monsters.