I've seen this movie so many times, but I think the first time was back in the mid-70s as "Attack of the Monsters". Gamera is a big monster turtle. He started out as a baddie in his early flicks but soon became a protector of children. These 60's and 70's giant monster movies (Gamera and Godzilla included) worked pretty hard to lure children into the theaters as their adult audiences sank. This is noticeable in the Godzilla movies but is without question what the makers of Gamera movies were after. This is a terrible movie. The acting is horrid, the plot is simplistic and disjointed, and the effects, even for a 60's movie, aren't very good. The giant monster costumes are cheap and stiff, and the child actors are sometimes painful to watch. But defying all odds, this thing is a lot of fun! Obviously, the monster action is the most enjoyable part. It's utterly ridiculous, but I ate it up. And for a kids' movie, it's really violent. In one fight between a winged giant (Gyaos) and Guiron (who has a knife blade for a head), the flying beast loses its right leg. Since it can't walk anymore, it takes to the air. When it swoops down to attack Guiron, Guiron jumps into the sky and slices off one of its wings. Gyaos then crashes to the ground and rolls around in pain while its severed wing spasms nearby. Then Guiron lumbers over and cuts off its other wing. The carnage continues with Guiron chopping off its head! Then ignoring all sense of remaining sympathy for what must have been traumatized children everywhere, Guiron saws Gyaos's remaining torso into slices! Later, a couple of alien women feed two boys some donuts laced with knockout drops, shaves one of the boy's head bald, and slowly lowers a spinning Dremel to his freshly shorn dome. She is interrupted before boy blood is shed, but still that had to be scarier than Hell to the wee ones in the theaters back in the day.