Actually, I saw MANY screenshots of AO and AE that doesn't fit my version.
Also, the demo doesn't have the same level exactly if you notice.
I believe there is an older version, but it was kept inside of OI and the testers.
Edit:
Here are some weird stuff I found at the Oddworld Graphics Gallery, there are many more level changes and version changes.
Abe's Oddysee - Weird screenshots:
Where's the scrab? Where's abe? Where are the lasers?
White shiney timed mines?
Small Slogs in Oddysee?
What happened to those mines?!
How did Abe got there?
Abe's Oddysee - Old version:
Elum trap instead of bees
Other "dot" for the text
LCD numbers too light
Where's that scrab?
The backround looks lighter and foggier
Abe's Exoddus - Weird screenshots:
A shot from the good ending. Buy there are 4 fingers like in AO's older version!
It's another level, but how did Dripik got there without opening the path to the teleporter?
Abe's Exoddus - Old version:
A hole in feeco?
The sign is Yellow and happy instead of green and crazy
Greeters? Over there?
Extra slig and extra bomb
If someone know who uploaded those screenshots maybe he can solve that Oddworld versions mystery!