Tip: Layer 3 backgrounds and tides disappear when you hit a message box, so plan your level around that. For example, you can add a sublevel without layer 3 at the start/midpoint, and include your message there.
Act 1 of Route 99 from Sonic Advance 3. It's a high-energy upbeat song. Fits urban levels and athletic levels well. Like my some of my other GBA ports, I added some of my own panning to improve how the song sounds.