Learn how to make SPA into advance (Note: I'm using a custom SPA sprite by me as a sample, I don't care if the sprite is bad, it's just a sample)!
1. Get the SPA sprite (duh)
2. Resize it to the advance size (I use 125x125)
3. Fix the quality
4. Make advance style shading (I suggest you get an advance sprite to have an idea of how it is), but not with the pallete you are going to use, use any 3 MS Paint colors (I use the colors up there like some people do), except the color being used in the background
4.5. Get the pallete you are going to use
5. Recolor it (duh)
6. Make shading to the white parts, but use MS Paint colors from that bar again
6.5. Get the pallete you are going to use for the white parts
7. Recolor it (dumbass)
8. Reshade the shoes and change the black pallete to advance (if that is important to you)
9. Recolor it. There it is
You can also try to make SPA into Genesis:
It's just like making it into Advance but with a different size and colors
Extended Tails Edge animation, it could be useful for something :V
A SA3 style Tails Doll
Game Boy Color custom pixel art
Mighty and Ray in SPA style
Hyper Sonic SA3 style
Just some MS Paint art
I.M.Meen (OH LOOK! WHAT CLEVER CHILDREN!):
I still have some sprites and stuff, but there is one sprite that needs to be fixed I'll post it when I fix it, ok?
I doubt that someone will post :V