Silent Hill is a video game, the first in the survival horror series with the same name. The game was released in North America on January 31, 1999, Japan on March 4, 1999, and in Europe on August 1, 1999. It was released exclusively on the Sony PlayStation. A movie adaptation based on this game has been made and was released theatrically on April 21st, 2006. Silent Hill has five separate endings. Each ending is achieved based on how the game was played. The Bad ending is the easiest to get as it requires no extra exploring, just for the player to finish the game. The Good+ and UFO endings require experimentation and exploration.

Unlockables

Endings
Bad Ending - Simply skip over the sequences in Annie's Bar, Indian Runner and the Motel. Then kill Cybil when you battle her at the fairground.

Bad+ Ending - Simply skip over the sequences in Annie's Bar, Indian Runner and the Motel. Then save Cybil when you battle her at the fairground.

Good Ending - Play the game through, without skipping ANY missions. But kill Cybil at the Lakeside Amusement Park.

Good+ Ending - Don't skip over the sequences in Annie's Bar, Indian Runner and the Motel. Then SAVE Cybil when you battle her at the fairground.

Other

Unlockables
Alternative Opening Scene - Beat The Game With The Good+ Ending

Chainsaw - Beat the game once on any mode with the Good+ Ending. Now go to the Gas Station near the church and grab the Gas Container. Head to the Chain Saw Store located on the map to get the Chainsaw.

Channeling Stone - Get the Good+ Ending. Then, save a Next Fear Save and then go to the Convenience Store in Old Silent Hill. Inside, on the counter, is the Channeling Stone.

Green Beam in Hyperblaster - Get a 10-Star Rating

Hyperblaster - Beat the game once with a Good + rating, then beat the game again with the secret UFO ending on Next Fear mode. The next Next Feat game you play you will have the Hyperblaster.

HyperBlaster-Orange Beam - Get a Ranking Of 8 Stars or More

Katana - Beat the game on hard mode and start a New Fear game. Look in the Levin Street House where you use the Dog House Key. In the hallway connecting the front of the house to the kitchen to door will
be open.

Rock Drill - Beat the game once on any mode with an ending. Then go to the Gas Station and pick up the Gas Container. Then go to the first floor of the Bridge Control Room and get the Rock Drill.

Obtain UFO Ending
Get the Good+ ending, make a Next Fear Save and get the Channeling Stone. Use the Channeling Stone in the following areas:

Alchemilla Hospital Courtyard (Before fighting Moth Boss)

Evil Midwich Elementary School Roof

Lakeside Silent Hill Motel's Parking Lot

Lakeside Silent Hill's Boat (After talking to Cybil and Dahlia)

Top of the Lighthouse

Easter Eggs

Sonic Youth band reference
When you arrive at the School, go to the office and you'll find the names of three teachers are, K. Gordon, L. Ronaldo and T. Moore, three members of the band Sonic Youth.

Secrets

Expanded Options
Open up the Options menu, press L1, L2, R1 or R2 to open an extra menu.

Get HyperBlaster without beating the game
To get a working HyperBlaster without finishing the game with a GOOD+ ending. Plug the old Konami LightGun (the HyperBlaster) into controller port 2 then start a new game. It'll be in your inventory.

In case you've been a good boy, here's the secret UFO ending: