[Spoilers?] Just finished Gasaraki [1998] what in the hell is with this ending? Seriously?

I don't think spoilers is even valid for a show that's 18 years old, but hey, I threw the tag up anyways.

I just finished that show, and my god am I confused by that ending.

Unresolved shit:

1: Symbol (Simbal? Whatever) is some huge global corporation seemingly pulling the strings, right? What the fuck was their endgame? What did they want? Did they want to summon the Gasaraki? Because it seemed like it was that other guy who wanted that. The one desperately trying to get "infinite power".

What happens to them? Are we just to assume that it's business as normal after this? They're just going to continue floating around, pulling the strings and doing whatever they please? What's their next goal? Is no-one going to try and stop them?

2: What happened to that guy, anyways? The one who was trying to get infinite power. I don't remember his name, sorry. I saw him get turned into tiny balls of light and fly off, but to what? To where? Is he with those weird beings?

3: What are those weird beings? How are they connected with the Gasaraki? They said they waited "since the dawn of time" and at the same time "3 million years" These things do not mesh.

What were they? What did they want?

4: How did Yushiro do any of that nuts stuff with his Fake? I'd be fine with writing it off as anime nonsense, but it was never even attempted to be explained. So he's a Kai, right? He's somehow connected to the Gasaraki, right? Or those weird beings?

Those beings apparently gave specific humans modifications to their DNA that would do...something?

But I mean, that isn't enough to make the Fake (a machine) just plain break the laws of physics. If that machine was alive or "magical" than I'd be fine with it. But it's not. It's just a standard military-grade machine.

5: This whole show. I mean what the fuck. I have literally no idea what was going on and it ended so quickly and what the actual hell.

Gah.