The standard route gives you the Cracked Idol . The exclusive route gives you the . Here is the branching path you must take at the fork in Chapter 2:
Mirror 2 (South-West): Angle at 90 degrees facing North-East. lost lagoon walkthrough exclusive
Follow the lunar phases etched above the tunnel—New Moon, Waxing Crescent, Full Moon, Waning Gibbous. The standard route gives you the Cracked Idol