Traversed World achievements:
Traveling all the way across the indicated words to award the indicated
amount of Xbox Live Gamerscore points.
Traversed World 2 (10 gamerscore points):
Unlocked by traveling all the way across World 2.
Traversed World 3 (10 gamerscore points):
Unlocked by traveling all the way across World 3.
Traversed World 4 (10 gamerscore points):
Unlocked by traveling all the way across World 4.
Traversed World 5 (10 gamerscore points):
Unlocked by traveling all the way across World 5.
Traversed World 6 (10 gamerscore points):
Unlocked by traveling all the way across World 6.
Solved World achievements:
Fit together all the indicated world puzzle pieces and align the puzzle in
its frame to award the indicated amount of Xbox Live Gamerscore points.
Solved World 2 (15 gamerscore points): World 2 puzzle pieces
Solved World 3 (15 gamerscore points): World 3 puzzle pieces
Solved World 4 (15 gamerscore points): World 4 puzzle pieces
Solved World 5 (15 gamerscore points): World 5 puzzle pieces
Solved World 6 (15 gamerscore points): World 6 puzzle pieces
Misc. achievements:
Speed Run (15 gamerscore points):
Complete a full speed run of the entire game, beating the challenge time.
Closure (60 gamerscore points):
Unlocked by completing the entire game.
Unlock Epilogue:
Find all 60 puzzle pieces and complete the jigsaw puzzles on every World.
Go to the house where the levels are selected. There is ladder that
leads to the attic. Climb up and enter the door to access World 1.
After finished World 1 again, you will see the Epilogue.
You can see the Epilogue next time, if you walk into the hidden alcove
on the left side of the title screen.
Unlock alternate ending:
Pick up the first seven secret stars to unlock the last secret star in the
final level. Some of the switches in that level can no longer be affected
by time manipulation, allowing the last secret star to be collected and
changing the ending.
