Monster Hunter Freedom 2 / Monster Hunter Freedom Unite
A metal plated dragon known as the tempest of wind. Eyewitnesses report violent storms alongside the dragon, and its wide range means towns may be attacked.
Monster Hunter 4 Ultimate
Rusted Kushala Daora items cannot be obtained, the only items obtained are normal Kushala Daora.
Rusted Kushala Daora has a slightly different moveset that the normal Kushala Daora. It uses his aerial turnaround bite much more often, and can immediately attack with a charge or a wind blast after jumping back (whereas a non-rusted Kushala Daora always taunts first).
Rusted Kushala Daora's roar and screeches are slightly different from Kushala Daora's.
In the Town Rusted Kushala Daora can be hit with the Dragonator to deal heavy damage and cause it to fall down. If it is attacking the wall with a triple wind blast the hunter will have to wait for it to fly down. It can be hit both when hovering and while on the ground - as long as it is within the dragonator range, it will be hit.
Rusted Kushala Daora's name is not mentioned, only to be mentioned as "A brown metal plated dragon".
An icon for Rusted Kushala Daora was found in MH4, but the monster was never found in the game.