Thank you for an idea, I already knew about such tools, and I even do own one. But thing is, that those tools are used for animating vector characters , and they aren't suitable for low res. pixelated animations. So no easy way for me, but it's fun anyway.
I used my software package to do this.I think I remember the process as - I create the vector layer image in a high resolution. - bone and animate it. - export to image files(frame to image) - Then batch scale down the image files in gimp.
Don't get my lying as I don't recall from so long ago. I'm not sure the total outcome or the tweaks and workaround's that I used.
I always worked and lager resolution and dpi and scaled the end result, just because I couldn't work in tiny resolutions.
