Here's a really good clear shot of the beta Caverns. There aren't any notable differences, other than of course the scar-faced guards. In the "now" shot, right, we can see that everything remains the same, at least in this section of the level.

Look at the blue metal surrounding the wall, and the dark stripes on it. In the "now" shot, right, most of the stripes are gone. Also, you can see the beta shot has a shiny metal door, which actually looks better than the door now. Another thing, is the dark screen that exists in the final shot, below the walkway. You can see that it's not there in the beta shot. An finally, in the "now" shot, we can see that the railing is transparent. The beta shot however, shows that the railing is solid. You would think this glitch would be the other way around.

Another Beta Caverns shot. I never even knew this one existed. We can see yet again, evidence of the shiny door that slides up and down. You can see it, along with it's caution stripes. Is this door still in the memory? I haven't found it yet. If it is, it might be possible to hack a GS code to make that door here. Thanks to SubDrag for the left shot.

Here's Bond in the radio control room. He's looking across at the drone gun tunnel at the end of the level. We don't have a lot to compare, but a "now" screenshot, right, shows that there aren't any noticeable differences. The beta shot is brighter, but it could be because Bond shot out the glass to look across.

In beta shots, it seems really common to find long, orange bullet streaks from enemy fire. It still happens now, but it's hard to get a screenshot of it. Maybe the streaks were longer before the game was completed, making it more likely to show up in a screenshot.

Screenshot from www.rareware.com

Now this is strange. In this location now, behind this door is dark floor. But in the beta shot, it's a bright walkway. In the final version, it's a big open room, not a walkway. I found a location with the setup for a walkway, but the wall surrounding the door is blue, so it's possible that the wall was changed, not the room.

Left screenshot from www.rareware.com

Just a bunch of mines going off. There's not much to compare with now, but everything visible here is unchanged. I simply included it here because it's a beta shot.

Left screenshot from www.rareware.com