Oh man, I don't even know if I could tell you at this point, I hadn't played any of these versions in years. I know v0.035 is when it had the boss tentacle fight where you had a nice scene when you won the fight. So I think that was when they changed it from 0.3 which had the above ground section. I think 0.035 also had a real funky "puzzle" that people hated so they removed that in v0.04. I could be getting this all wrong though, it's been years.
Edit - Oh yeah, v0.03 also had some of the only game over endings I think, with the robot dude and depending on who died last it would play a scene. Then there were the humans that would catch you in v0.03. All of that got removed from the following versions, probably to be added later in the game in theory, but yeah...we all know how that plan went.
And yeah, I'd view this project as abandoned at this point, having something "on-hold" for over a year is...sketchy. Plus they've already moved on to another project, lulz...
Still, it's crazy how much money they are still getting regardless.
And y'know, I thought about this last night while uploading this stuff, but...they had a REAL easy job here. I mean, there are ZERO animation scenes. All this game is...is CG (and very little of it) wrapped around a clunky battle system. Just, wow man... /rant off