Vanilla FF4 contains numerous major and minor glitches. Some are disabled by default, but can be reenabled with flags. Some are left intact. Some are disabled and cannot be reenabled. The behavior of each glitch is described here.

If a glitch is not referenced in the text below, assume that it is enabled and intact.

The 64 floor glitch is disabled by default. Attempting to underflow the warp stack will instead trap you in the top-left corner of Baron Town or the Smithy house.

This glitch can be re-enabled with the G64 flag.

Note that the techniques used to manipulate the spell list in the NoCW speedrun do not work in Free Enterprise, since that memory has been reworked to support duplicate characters.

The item duplication glitches from the battle item menu and the post-battle treasure menu are disabled by default, but can be re-enabled with Gdupe.

The MP underflow glitch is disabled by default, but can be re-enabled with Gmp.

The glitch allowing you to take the Sealed Cave item by warping from Giott's throne room is disabled by default. You can still cast Warp to return to the crystal room, but you will not be able to take the item.

This glitch can be re-enabled with Gwarp.

The glitch allowing you to use Life potions (or cast Life1) on defeated enemies for bonus EXP is disabled by default; these actions will no longer have an effect.

This glitch can be re-enabled with Glife.

The following glitches are known and still intact in Free Enterprise:

• The “long range” glitch, allowing back row characters to deal front row damage
• The Avenger glitch, allowing a character equipped with the Avenger to retain their combat stats from their previous weapon
• The permanent elemental vulnerability caused by unequipping Adamant Armor
• Infinite arrow glitches

The following glitches are known and have been removed from Free Enterprise:

• The “Mist clip” (map position de-sync caused by using Tents/Sirens/other overworld items while standing between two map tiles)
• The softlock caused by mashing the menu button during cutscene transitions to the airship in flight
• The ghost 5th menu item in Edward's battle menu that appears after using Show
• The ghost “treasures” that can be picked up by “talking” to certain entrances/exits