Submitted by: Knuckles Prower

This little image was found with an article, showing Nack in an animation that he never uses in the final game. Nack is also never found outside the special stages in the final game, so this area is also obscure for him to be in.

Submitted by: Unknown

This image appears to be before the image above. Perhaps Nack held Sonic up, or demanded the Emeralds.

Submitted by: Unknown

Here is another image of Nack, in an alternate pose with and in a different position all together. Maybe he moved across the screen a little, like Amy Rose in Sonic CD.