Ninjaripper is a tool that allow the extracting of models, sprite and textures from the memory of a DirectX game. The application only supports executable (.exe) files. For java game (.jar or others) it is possible to "spoof" it into an .exe therefore making it work.
The 'Arg' field is for certain executables that require arguments.
Generally, the option 'Intruder inject' should work for most game.
Once in game press F10 to rip models and images and F9 to rip only images
Ninjaripper does not allow you to rip the skeletons.
Once done, models will be extracted in .rip and .dds format for images.
Some models will come in parts (as they are natively) so be sure to watch for that.
PS: I wasn't sure if this was the good sub-section to post that so move the thread if required.
Edit (2019-01-06): Corrected texture format (.tex to .dds)
The 'Arg' field is for certain executables that require arguments.
Generally, the option 'Intruder inject' should work for most game.
Once in game press F10 to rip models and images and F9 to rip only images
Ninjaripper does not allow you to rip the skeletons.
Once done, models will be extracted in .rip and .dds format for images.
Some models will come in parts (as they are natively) so be sure to watch for that.
PS: I wasn't sure if this was the good sub-section to post that so move the thread if required.
Edit (2019-01-06): Corrected texture format (.tex to .dds)