Defeating The Grapple Guardian:

If you remember the Glenchers from the light world (the reptiles like the Shegoths from the last game) well this guy is a type of elite dude (or Alpha). He is very easy, or atleast for me he was. There are 2 weak points on him, the eye (like under on his jaws) and his back. Here is what you need to do. Shot his eye with whatever you want, you should know that when you shot at his eye, it will eventually just piss him off. He will attack with the Grapple Beam in his horn, use the two pillars in the room to avoid him. After shotting him a lot, he will shot a grapple beam at you. Jump behind a pillar and he will get jammed. Jump behind him and shot the hell out him for your life (literallly). Continue the process of shotting his, ticking him off, and jumping behind him and shotting him. Eventually, you will defeat him if you continue this process.