Mounts have several technical details that need to be considered when creating a replacement. 

• Some mounts are classified as a terrestrial creatures and some are flying/floating creatures

• Mounts can have unpredictable scaling.

• Some mounts are also NPCs, and may require a collection to keep them separated.

• Mounts have an extensive list of movement animations including flying, swimming, water transitions, etc.

• Due to their unpredictable nature, mounts can be very complex to edit.

A Chocobo replacement generally involves several basic parts

• Model replacement

• Skeleton replacement

• Binder replacement

• Idle Animation replacement

• Movement Animation replacement

• Player Mount Animation replacement

• Interactive Ability(ies) Animation, VFX, and SFX replacement(s)

In addition to the basic parts of the replacement, there are often other factors to consider that are more advanced edits

• Scaling the model, skeleton, animations, and binders.

• Mounts generally do not have attachment settings. So when replacing it with a creature that is supposed to wield a particular weapon, the weapon has to be located and manually attached and weighted to the skeleton to be added to the model.

• Some creatures, like Demi-humans, have multiple separate pieces that are combined by the game to give them variety. These parts have to be combined together to use as a replacement.