OMG, you had to kill a heart to enter hard mode, or leave the trees up, so beautiful and elegant. The old god as final boss, the art of most of the instance was beautiful and mesmerizing, you had to go from the light to the dark areas of the instance to end it and OMG Algalon, most beautiful boss in existence, not that cheap imitation with the ugly voice in mop.
Except the first boss, screw that boss.