It's a sick world, and insanity is on the rise. Piecing together the twisted plot of Siren isn't easy. You'll have to skip through time to uncover the true origins of the madness in Hanuda, a small mountain village that is the current victim of a blaring alarm in the night. When your actions in one mission drastically affect another character at some juncture in the flow of time, every move is important, and missing anything could be catastrophic. Thankfully, IGN Guides is here to save you. Having pushed through Siren, beaten and battered, we've conquered the fear of the lurking shibito. No longer do we run from a challenging mission--we've found all secondary mission objectives, and have lived to tell about it. If the complexities--and scares--of Siren have you beat, use our guide for:

• Basics
  Combat tips are just the tip of the iceburg. We've got tips on locating enemy shibito in the dark, and finding your own way through the dark, foggy world of Siren's Hanuda.
• Full Walkthrough
  All sixty-four missions fully explored. Never miss a secondary objective, and unlock all missions. Plenty of screenshots to walk you through everything.
• Archive Items
  Find all 100 Archive Items to further bury yourself in the story, life, and mystery of Hanuda.
• Secrets
  Learn our best secrets, with unlockable mini-games.

Get the guide here.

Complete the game with the first ending. At the stage select screen press SQUARE to play Time Attack.

Complete the game with the second ending and collect all 99 archive items to unlock the 100th item. Go to the stage select screen and move the cursor to the upper right corner. There is a cinema that takes place in 684 AD showing the fate of the alien visitor.

Find Archive item #087 Kyoya Sudo's stage, Day 3, 03:00. The game becomes available from the main menu.