: You must rely almost entirely on sound cues and minor visual sparks to navigate traps like saws and gravity shifts.

Each egg corresponds to a specific PS3 trophy. You can use the "Chapter Select" menu after your first playthrough to find any you missed.

: You must collect all 10 hidden white eggs scattered throughout the main chapters.

The PS3 version includes a hidden, ultra-difficult "Secret Level" that takes place in nearly total darkness.

: In Chapter 26 (the "Alone in the Dark" section), instead of moving right, climb down the long ladder on the left into a pitch-black cave.

Released on the PlayStation 3 in 2011, is a haunting 2D side-scroller known for its minimal aesthetic and brutal "trial and death" puzzles. While the core game is straightforward, reaching 111% completion requires finding hidden collectibles that unlock a secret, high-challenge area. The Secret Level: "Alone in the Dark"