Thats my problem, i cant find any tutorial for that thing what you saying broo.
When you download BWSE there is a note that will tell you the narcs for BW and BW2.
When hacking BW the main tools you need are Kazowars BW tool package inside is BWSE
I used tinke to extract a folder with all the sprites, the narc in tinke is a/0/0/4 you extract it as a folder not as a narc, now you open the folder in BWSE and you know you did it right if BWSE wants to rename all the files, now you choose a sprite and edit it they are made up of each separate moving part so it's challenging unless you're doing a basic type change. If you are hacking Bw2 its s différent narc and You can make the sprites static.
1.export front and back Sprite
2.import new front Sprite
3.PRESS SYNC PAL or everything messes up
4.import back Sprite
5.turn off sync check front and back
6.it may not work if you have too many colours
7.exit BWSE
8.open KIWI ds editor and press make narc choose your folder with the sprites and done you have the narc with a new Sprite
9.reinsert narc using Nitroexplorer
Alright hope it helped