The background used in the prototype version of Hydrocity Zone in Sonic 3. Does not include ExAnimation, because that would require more work than usual. This time, I optimized this rip even further, and now it uses only one EXGFX file. Useful for some ruins, maybe? I recommend using with parallax for some nice results.
Uses palette 3 row and BG2 slot. Includes BG Editor screenshot because of how large the background is.