A mod idea for the full game: "an Unwanted Friend

This would be an "AU" where something already did reside within the grey planet, being this tall lanky figure with long arms and legs, who had no problems with the humans until they started sending out Expies, at first he just watched, unsure what the hell they were doing until he saw the dark, cruel tragedy of an Expies life, now dedicating his life to destroying the company by blowing them up, how is he going to do that? With the chips in the expies of course, he has almost enough to start blowing the thing up, he is one short of it, when you find him he will offer "Freedom", at a cost, stay close to him and he will grab you and ligt you up, grabbing the chip inside you and ripping it out, HOPEFULLY you have the things to recover safely, because he leaves shortly after.

Now that you are no longer chipped, the caves now have some holes for you to crawl up into the surface, once you do, you'll find how peaceful it originally was until you suddenly hear a loud explosion coming from either your left or right, going over to investigate will meet you with the unwanted friend carrying injured expies out, you have 5 minutes to save other Expies or get loot before the company collapses, depending on how you did, you could get your very own good ending!!! What's this? The gunsawians now have a possible good ending where they aren't suffering and they die happy? Waiter! Waiter! More unlikely scenarios please!