Cage, on 03 May 2014 - 12:17 AM, said:

Take note the recon car is scaled differently in Duke3d sprite - I suspect those sprites were rendered in standard 4:3 resultion and this one was scaled to work better in 320x200 which isn't 4:3
Fox, on 07 May 2014 - 06:20 PM, said:

The PC version sprites were definitely created with the 4:3 aspect ratio in mind - that is, they are all shrunk down vertically a bit (I don't know the proper term for this) so that they are stretched back to their intended dimensions when a 320x200 image is displayed on a 4:3 screen.
However I'm not sure what happens to the PS version of the game, since the sprites that you have provided except the RPV have the same proportions as the PC version ones. Moreover, the game appears to be more or less identical to the PC version in this video, however in this one the monster sprites seem to get stretched vertically even further compared to their PC counterparts. I can't tell but the second video may be authentic footage of the game being played on the console, while the first one might be recorded from an emulator. I'm not sure in either case though.