Anything to do at the pyramid in the water? The one near James T. Jerk. In fact, since your character can't swim (at all, and can't breathe when jumping above water) and all waterways (and some water fountains?) seem to be twenty feet deep, is there anything hiding in the water in any areas? I've seen shallow water you could walk across, but it seems (so far) that anytime you go underwater, you are 'off course'.
I had a dickens of a time trying to jump up those clouds in the first one. I'd be happier if there were girls hiding in easier to reach locations. You can find a nun at the reservation. Unfortunately, it is just a costume with no custom dialog.
What is your favorite character to play as? I've been grabbing security guy from the second mission since he is 10/10, but I also often wind up swapping people instead of weapons, so I accidentally changed into Capt. Jerk when I tried to pick up the lightsaber.
Also, I found that the robot girl is still in the game at the regular location for one of the best weapons in the game (+10 Robot Leg).
In the original, I think the game had twins or something? I noticed that the Steam version had three (out of a total nine) cards featuring sisters. I just ran into one of the named characters for mission 8 or 9? It was Britney, but there wasn't any mention of Tiffany in that mission. That were one of the Sister cards sets, so I'm not sure if it is in the game or just a popular fetish that they put in the cards for marketing.
BTW- checking out the Achievements, I found one that was stupider then usual. If you leave the game running for about 42 days (1000 hours), you get an achievement... yay? Other achievements seem broken, like it says I've done a LOT more drugs than I have. For example, Frogger is supposed to track how many frogs you've used (you get it at 26 frogs), and it correctly states 0. However, Licking for a Prince is the same thing, but for a max of 250 frogs, and it thinks I've done 27. Master Frog Finder (750) thinks I've used 251 frogs. I've only even found about 50 so far. So a lot of the stats appear to be broken.
Also, while the save game transfers over, I noticed some of the cheevos for the early game aren't triggered because I played it on the downloaded version. I may have to start again on another save file to get those, if I'm concerned about cheevos at all, which some of these are so stupid, I might just forget about it.
Also, for characters, I switched from Capt. Jerk to Arnie.