Switchboard Falls

Pipeline Lagoon, otherwise known as World 3-7, is the seventh course of World 3 in Super Mario 3D World. It is unlocked via completion of Pipeline Lagoon, and its own completion unlocks The Bullet Bill Express.

Green Stars

 * Green Star 1: During the third switchboard ride, there is a platform with three + Clocks and a Warp Pipe that the player must jump on. The pipe leads to a room where the player "falls" toward the green star.
 * Green Star 2: After going through the waterfall, the player should tilt the switchboard left and duck underneath the wall to find the second green star.
 * Green Star 3: Near the end, the player must ride the switchboard onto the rightmost diagonal railing upward while avoiding a Fuzzler to reach the third green star.

Stamp

 * After the third green star, the player must ride the switchboard left and drop down to another switchboard that leads to the stamp.

Enemies

 * Stingbies
 * Fizzlits
 * Coin Coffers
 * Fuzzlers