All Working Braid Cheats - Xbox 360

Achievements
Complete each achievement to get the allotted gamerscore:

Solved World 2 (15) - Fit together all the world #2 puzzle pieces and align the puzzle in its frame.
Solved World 3 (15) - Fit together all the world #3 puzzle pieces and align the puzzle in its frame.
Solved World 4 (15) - Fit together all the world #4 puzzle pieces and align the puzzle in its frame.
Solved World 5 (15) - Fit together all the world #5 puzzle pieces and align the puzzle in its frame.
Solved World 6 (15) - Fit together all the world #6 puzzle pieces and align the puzzle in its frame.
Traversed World 2 (10) - Travel all the way across World #2.
Traversed World 3 (10) - Travel all the way across World #3.
Traversed World 4 (10) - Travel all the way across World #4.
Traversed World 5 (10) - Travel all the way across World #5.
Traversed World 6 (10) - Travel all the way across World #6.
Speed Run (15) - Complete a full speed run of the entire game, beating the challenge time.
Closure (60) - Complete the game.

Unlock Final Star / Secret Ending
If you collect all 7 secret stars throughout the game, the 8th and final star will appear in the last level and some of the switches in the level will become immune to time manipulation, allowing you to reach the star as well as changing the outcome of the chase.

Hidden Book in Epilogue
In the second-to-last room in the Epilogue (Just before the Castle), jump from the elevated platform onto the center of the bridge / middle of the rock. A sound will play and a new journal entry will appear.