The mask is definitely not part of the body. I believe there's a picture on TOGG of a Big Bro concept without his mask...
http://oddworldlibrary.net/archives/...=CAMO0003.jpg1

I think Sligs are smart due to their high reflexes, in Abe's Oddysee, if they heard one footstep touch the ground they'd yell "Weak!" or something like that and they quickly turn and kill you before you can even turn around. But all in all, Sligs can be pretty stupid because they can fall into traps if you get them over to it. :p

And I do NOT understand their language in Munch's Oddysee (When they aren't possesed) they say stuff like "beh heh,so it's just allover the place" "So we guttha so we gettha?" "Ah Chum". What the heck kinda conversion is that, random gibberish or something.
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A little off topic, what about Elums? they're pretty cool creatures and yet they're still ignored in most if the games. It would've been awesome to hitch a ride on him in Stranger's Wrath so you could chase down and possibly even scare some of the outlaws, riding Elum could've even added new boss fight ideas such as riding down an escaped outlaw wanted dead or alive.

They yell "Freeze!". They're not that hard to understand, surely?

The mask is an ordinary mask, there is no mystery behind it. It covers up the alleged ugliness and enhances their vision. There is no mystery.

and the tube is for oxygen yes?

I thought the Sligspeak in MO was pretty easy to understand.

Nope, I think it's so the mechanical pants can power the red eyesockets up of the mask.

I had no idea what they where saying in MO really, just guess work, and at first I thought "freeze" was "freak" ..
On that note I wonder why they removed "help", you used to beable to say that as a slig in the demo version

I only tried one demo, it was inside VykkersLabs and came out after the game was released. Any idea of where I can find the demo you played, I'd love to toy with it.

That would be the PlayStation demo of Abe’s Oddysee, Xav.

Yeah, "help" was the only slig sound you were unable to make. Though surely the Glukkons made up for that... in their own way.