Because player can't use their own weapons, but instead is a missle launcher, but his missle launcher is the worst part. It is because Jetragon can't stun alpha pals, predator pals, tower bosses and raid bosses. When his missle launcher his enemis, it stun but nothing changes drastically, even alpha pals, predator pals, tower bosses and raid bosses. And also he's too big so not only he's and huge target, also he's bad at dungons. Even his stamina, also Jetragon is keep running when he combats.

I don't want to use Jetragon anymore!

I recommended to use Xenolord instead of Jetragon.

(Just be careful when flying on water or lava)