Why thank you.
Anyway, seeing we better not waste this search result, here's a Straight answer.
SPOILER
You have these little creature bugs, on the left side of the top Maze where you get the clay, they also come out of the golem's head everynow and then. You eat those with beast form and shoot them at the mother, the mother looses focus and you can attack the Golem, the mother recovers and repeat the process. After a while they go all in supermode, which you then only have to shoot the golem. You notice when this is when the mother starts shooting you, I believe.