How to optimize this old sprites/tiles?

Hi!

I’m looking for a tip.

I want to optimize the dragon ball z sprites and tiles but I don’t see how to do that.

What would you guys do? :slight_smile:

Thanks for reply.

-David

I forget to tell you that I don’t know anything about pixel art.

Ave you some photoshop tips or something to optimize these without remake everything? :face_with_spiral_eyes: