Shrek Forever After
36 Achievements
10-12h
PS3
Swamp Sweet Swamp
Use the magic mirror
79.7%
How to unlock the Swamp Sweet Swamp achievement in Shrek Forever After - Definitive Guide
This one is pretty easy to get in the 1st level you will come across Shrek house you need to use Shrek to break down the down walk in and the mirror is right in front you walk to it and press "A"
This is story related and will unlock in the Swamp level.