At the end of chapter 2, the Gullwings, and another team attack Bevelle. There's a puzzle where there's six moving platforms after sliding down a chain, the Gullwings have to activate all 6 before they climb down. Each one having a boss.
This puzzle actually has a second stage. Just unlocking the top three will allow the gullwings to go down to the entrance and go to the next part of the adventure. However there's a second entrance at the bottom. That's where the ribbon is.
After hitting all six locations. The gullwings can use the red pylons to select a platform, and the blue pylons to move it left or right or reverse it ( move it 3 in either direction, it's directly opposite).
When you move it left or right you have to fight a medium difficulty fight.
If you can get all six platforms in a staircase formation (each one a little lower than the one before). You can reach a second exit, that exit is to the ribbon and unlocks this trophy.
The video shows the whole process, all credit for the video goes to Basch1936