How exactly do you get into custom spriting?

[Acfusion]

When it comes to line art you can do that but since you are doing small sprites unless you are doing something with art direction or a complex animation or the sprite is very large scale for pixel art it would be a waste just to do it on a small sprite especially if the art is simple like kirby. I would just reference sprites of characters who are already in the game for scale and shading and just make the sprite with what art program you are using.

For color palettes I would just pick colors form pre-existing sprites just to save the trouble of picking colors since your doing it based on a particular game's art-style and not just completely made from scratch.