Phantom Abyss

This trophy is simple and should be unlocked throughout the course of the game.

All you need to do is prestige one whip, the way you prestige a whip is by collecting a relic with that whip equipped.

Therefore just get to the end of a run and collect the relic with your whip and the achievement should be yours.

In order to unlock a Gold Shine, the challenge level has to be 600 or higher.

When starting a level press X to modify the challenges. Add challenges until the challenge level is 600 and you will see Gold Shine in the bottom left of the screen highlight. Then enter the temple.

Complete the level and the achievement will pop.