oh no, here we go, are there any crazy walking trees in Oddworld who hunt people (Mudokons) and devour all in sight? (sorry about that, i have Tolkien on the brain)
I think that the trees in Oddworld and stuff would be very similar to what can be forund on earth. Now if there is oxygen or not on Oddworld, that seems to be one that went by everyone.
This is some pretty heavy stuff. While we're at it, are Mudokons carbon-based life forms?