First off, why was this even submited on this site? Its not a full on anime title, its just an opening type animation sequence of studio TRIGGER's mascot characters. Nothing more, nothing less. I think its kind of unfair to rate this as an actual title by Story/Characters etc, if we're being serious. But hey, If you want to know my silly opinion though, here it is. This was made by Studio Trigger; Studio Trigger are gods. Therefore everything they make is perfect, and therefore "Trigger-chan" is perfect. Trigger-chan is our new godess and we should all bow down to her.Muzzle is the best girl.
And Spring is also best girl.

Actual full-length Trigger girls anime series or OVA when???