Aren't there too many rocks in the last screenshot? The only safe way trough I can see now is jumping out of the place near lava and thoking to the second stair (as sonic)... Which is also filled with too many rocks =X.
Edit: Also ontopic, in the slime base zone there are some enemies that aren't postioned right, making them not follow you because theyre turned backwards, making:
1. It makes me confused at those places, I usually go trough paths the enemies STARE at me, so I know I'm not going the wrong way.
2. It just makes them super easy to get killed.