Complete the indicated task to unlock the achievement.

Achievement	How to unlock
The Hidden Secret #10	Find the Hidden Secret.
The Hidden Secret #11	Find the Hidden Secret.
The Hidden Secret #12	Find the Hidden Secret.
The Hidden Secret #13	Find the Hidden Secret.
The Hidden Secret #14	Find the Hidden Secret.
The Hidden Secret #15	Find the Hidden Secret.
The Hidden Secret #16	Find the Hidden Secret.
The Hidden Secret #17	Find the Hidden Secret.
The Hidden Secret #18	Find the Hidden Secret.
The Hidden Secret #19	Find the Hidden Secret.
The Hidden Secret #1	Find the Hidden Secret.
The Hidden Secret #20	Find the Hidden Secret.
The Hidden Secret #21	Find the Hidden Secret.
The Hidden Secret #22	Find the Hidden Secret.
The Hidden Secret #23	Find the Hidden Secret.
The Hidden Secret #24	Find the Hidden Secret.
The Hidden Secret #25	Find the Hidden Secret.
The Hidden Secret #26	Find the Hidden Secret.
The Hidden Secret #27	Find the Hidden Secret.
The Hidden Secret #28	Find the Hidden Secret.
The Hidden Secret #29	Find the Hidden Secret.
The Hidden Secret #2	Find the Hidden Secret.
The Hidden Secret #30	Find the Hidden Secret.
The Hidden Secret #3	Find the Hidden Secret.
The Hidden Secret #4	Find the Hidden Secret.
The Hidden Secret #5	Find the Hidden Secret.
The Hidden Secret #6	Find the Hidden Secret.
The Hidden Secret #7	Find the Hidden Secret.
The Hidden Secret #8	Find the Hidden Secret.
The Hidden Secret #9	Find the Hidden Secret.
World 10	Play the world.
World 11	Play the world.
World 1	Play the world.
World 2	Play the world.
World 3	Play the world.
World 4	Play the world.
World 5	Play the world.
World 6	Play the world.
World 7	Play the world.
World 8	Play the world.
World 9	Play the world.