The Special Attack selection was very different in the early version of the game. In the final it shows you your character an what that powerup will do with them, like Sonic's ring throw. Here is simply asks you to 'Select Special Attack!' in a different looking box, with no telling what the character will do.

Here the same bit is used, but in another level. Notice how it says 'POWOR', obviously a Engrish mistake. Also here the order for attacks is 'Power, Shot, and Set', but in the final it is 'Shot, Power, and Set'.

This is the final 'Select Special Attack screen'. with a very different interface.

Amy seems to be a little off. Her artwork should be lower than it is here, to make here the same size [or less] than Knuckles. Here she's almost completely out from under the text box.