The point of this guide is to document all the known differences between the original version of Clock Tower, and it's Playstation counter-part "The First Fear." Testing is still being done on my part so this may get updated frequently.

Differences that affect all endings:

• Action glitch to get past Scissorman after Ann's death does not work on the Playstation remake.

Differences that affect endings that go to the final elevator:

• The key to the crow room cage is in the room with the closet on the very left of the West Wing. You must also fight an enemy to get the key in this room.

• Hole skip does not work.

• Dog skip does not work, this forces endings that go to the clock tower to obtain the cloak and perfume. (You can get RIGHT in-front of the trigger, but there's something that prevents you from going past it using the clickable spot where Jennifer is)

• Lotte dialog skip is untested, but due to how the inventory works is assumed that it does not work. (Inventory pauses the game when you go into it, and the game resumes after you leave the inventory)

• There's a chance for a different Doll to come to "life" in the Doll Room. Also Jennifer checks the door on her own, and the doll seems to trigger right away. Eliminating the need to "quick trigger" in the Playstation version.

• For the A ending in the Playstation version, there's a wine glass in the kitchen that puts you right into the cell with Mr.Barrows after you get the ham, saving some time. (However the Playstation version is still slower for the A ending because Dog skip doesn't work, forcing you to get the robe and perfume as well as having to go into an extra room to free the crows)

Overall the SNES version is the fastest version for speed-running.