If you are planning on running the 100% category for an individual chapter or for all chapters at once, you must play on a clean save file in order to prove all objectives have been officially met.

For Consoles, go to the place where the savedata for all your games are located, and remove the file.

For pc this progress is a little harder thanks to the steam cloud.

1. If you currently have the game open, close it.

2. Disable Steam Cloud storage within Corpse Party's properties in the Steam library.

3. Locate your Corpse Party game files, remove CPSYSTEM.bin

https://imgur.com/a/cQk6aig

4. Relaunch the game, and assuming this method worked, all the Chapter endings and save data should be clear.

Note that this will also remove your chapter progress, so making a back-up is recommended.

If this method does not work, which is a possibility, please join the Corpse Party speedrunning discord attached to this leaderboard and contact a leaderboard mod.

Please note for 100% runs, runners must make sure to prove that they are using clear data for the entire game or whichever individual chapter they are running. This can be done in the run's video prior to starting by entering the Victims menu and proving no nametags have been discovered.