Sonic R/Radical City

Coins
Collect all the coins on this course to unlock Tails Doll.
 * 1) Just after the tunnel the track splits into two with a drop on the left. The coin is at the bottom of that drop.
 * 2) At the same place as above take the left path. At the next right turn go forward.
 * 3) Instead of going forward as above, follow the track.
 * 4) In the center of the pinball table.
 * 5) Behind the final 20 ring door on the course.

Emeralds

 * 1) At the river near the start of the course is a 20 ring door. This Emerald (Green) is located behind it.
 * 2) This is at the end of the path behind the 50 ring door. (Purple)