Some random miscellaneous stuff about DOS versions of 1.3D, 1.5 and the expansion packs:
Duke It Out In D.C. and Duke Caribbean: Life's a Beach were made with 1.3D in mind. That's why you won't find any expander ammo in any of the maps. The differences are mostly seen in Caribbean where the Commander's spinning animation is a bit stretched similar to the one from original 1.3D. Same goes with pipebombs, you get 6 per pickup just like in 1.3D.
One of the stands in first level only opens if you play the expansion in original 1.3D. If playing in 1.5, EDuke32 or Megaton, the stand will never open.
The paletted pig cops are more dangerous in 1.3D because they have twice as much health, making the levels more challenging.
Duke It Out In D.C. shows this unique ending screen if you play in original 1.3D version in DOSBox:
Duke Caribbean: Life's a Beach has unique episode textures if you play in original 1.3D version in DOSBox:
Duke Nuclear Winter has a dancing babe frame that replaces Duke's sprites while jumping. Can be seen during the third NW demo in the following screenshot:
![Attached Image: NWINTER_WTF.png](https://forums.duke4.net/uploads/monthly_08_2016/post-5084-0-76820500-1471873293_thumb.png)
To watch the NW demos, you have to delete the Atomic demos from your NWINTER directory.
User Map menu exists in original DOS version of Atomic Edition 1.5 as well. It can only be seen during demos playing in background that were recorded from specifying map name, I believe. For example NW maps or user map demos. It also shows up when you start a game from User Map menu. Not sure if it shows up if you start the user map from SETUP.EXE, I have never played user maps in DOS version before. Shown here are screenshots from Nuclear Winter, as well as two of my favorite user maps (Dukai and Streets of Gotham City) that have demos recorded (Dukai has a demo available at DukeWorld, Gotham comes with a demo file inside zip file):