Complete the indicated task to unlock the achievement.

Achievement	How to unlock
ALL_YIN_YANGS	Unknown.
COMPLETE_WORLD1	Unknown.
COMPLETE_WORLD2	Unknown.
COMPLETE_WORLD3	Unknown.
COMPLETE_WORLD4	Unknown.
FIRST_YIN_YANG	Unknown.
TUNNEL	Unknown.
WORLD1_YIN_YANG	Unknown.
WORLD2_YIN_YANG	Unknown.
WORLD3_YIN_YANG	Unknown.
WORLD4_YIN_YANG	Unknown.