I know you don't have anything that this topic with cortex command, but I'll add some doubt to it at the end, but first, I'd like to know if anyone here can speak Spanish, it's just a question.

and while we're at it, does anyone teach me how to sprint with today's gimp or any other program?

I speak spanish! So if you have any specific doubt you can always send me a private message. I try to reply often but I might not be always around.

Also, for spriting, I've tried Gimp, paint from Windows XP and Aseprite, and honestly, Aseprite is probably the easiest and best ones to use (this comes from someone who knows little to nothing about spriting, so it's noob friendly). It's paid, but you can download older versions for free which work right as good. It also automagically detects CC's pallette and what not so it's really nice and easy to use, give it a try!

Muchas gracias camarada

GraphicsGale is good too. I'm pretty sure it's free (or used to be, or there's a free version somewhere).

thank you also KettenKrad