The running glitch is a glitch in the NES version of Final Fantasy. Running is supposed to be based on Luck and Level, but is instead based on Luck and the status of the character two positions lower. This means that characters in the top two positions can run perfectly when they have more than 15 Luck and a healthy party member two positions down.
When the player attempts to run from a battle, the game loads something else instead of the runner's level:
- Slot 1: Slot 3's Status byte
- Slot 2: Slot 4's Status byte
- Slot 3: Identifier for entity that attacks third, either 0-8 or 128-131
- Slot 4: Depending on the ones digit of Slot 4's HP, 128-137