Help Identifying Sprites (from Sonic 2 HD)

[FallenLogic]

I've played through the game twice and ripped most of the sprites. The issue I'm having now is that there are sprites I don't want to upload without naming/categorizing. I'm not sure what they are. Some look like potential 'Special Stage' sprites, while others look like they could potentially be for the pause/title screens and others look like alpha/transparency maps for water. The rest I did not see in game. The names are their hex address in the game archive (sonicorca.dat).

Here's the folder of all 46 of them:

Miscellaneous Sprites from Sonic 2 HD

Thanks!

If you know what these are, I don't mind you uploading them.