: Four teenagers enter a "haunted" mansion only to be hunted by a giant, blue, humanoid demon.

: You must solve cryptic logic puzzles and find key items while avoiding sudden, randomized chases.

Ao Oni is a legendary Japanese survival horror game released in 2004, famous for its unsettling blue monster and high-stakes chase sequences. The Core Experience

In the original game and its sequels, you often need to find specific "pieces" to unlock the exit: Blue Piece | Ao Oni Wiki | Fandom