Can Natsu willingly use DragonForce ?

Can Natsu use the Fire Dragon King mode again? - Quora

Natsu Dragneel -Dragon Force- by Shinoharaa on DeviantArt

Can Natsu Dragneel use Dragonforce and Lightning Flame Dragon mode at the same time? - Quora

Natsu Dragneel/Synopsis, Fairy Tail Wiki

Never The Stranger (Fairy Tail x Reader)

Natsu vs. Luffy VS Battles Wiki Forum

discussion] Do you guys think any of the dragon slayers will undergo temporary dragonization like natsu did : r/fairytail

The Light Dragon Slayer

Can Natsu use the Fire Dragon King mode again? - Quora

Wendy's Dragon Force! Wendy vs Ezel – Fairy Tail 376