If you want a hint for that, here's one:
There's two bridges in successive rooms in the upper portion of Dark Gardens. One of them looks very much like you can get past a blockade near it and you can; it just requires some very thorough searching (and bombing)
I assume this is part of the scrolling sky glitch. There is one instance of it in Dependence and it takes place near here. I tried to cover it up as much as possible. However, if you exit the door to the left in the ship room and spacejump in the right way you'll still be able to see stuff like that until you scroll the screen up/down.
That's just a tiling error. I'll also have to fix that in the next version.
That's an interesting bug. It isn't really an early ice beam though, because you can go down through another passage that's also open before the Grapple and pick up the ice beam before the grapple beam if you want, although its less likely since the passage is harder to find. That also means you aren't stuck by doing this, although you may be able to get stuck somehow depending on what you do while you're in the wall before you fall down to the door.
The ectoons aren't reachable in the hack, yes. I'll take a look at some of the other issues you've brought up in the post and incorporate the fixes into the next patch. Plus I still need to make another update of this game and sort of apply the little tricks I've learned in my second hack to fix up some things in this one.
Btw, what do you mean by "Metroid 2 style glitches"? Can you give me an example?
And yeah I know the gate to the screw attack can be brute forced. Not everyone will try though =)
Actually Bloody Excrement is just my username on Gamefaqs, it predates the acmlm one by quite a few years so thats why its a different username. The link is outdated because Gamefaqs doesnt have post editting capacity sadly, although later on in the thread, I update the link.
There's also another discussion thread about it on acmlm's board:
http://board.acmlm.org/thread.php?id=210&o=0&p=20
I'm actually the creator of said hack, so if anyone has any questions, feel free to ask. As for how I found this thread so fast, let's just say I have a contact in the speed running community who found it for me.
I've also got another SM hack currently in the works that should be out soon.
But anyway, as far as Dependence, now that most of the bugs are out, I'd say it'd make a pretty interesting speed run actually, given the number of possible routes and the number of potential sequence breaks, skippable bosses and shortcuts that I threw in it.