Dorumon (Chronicle)

Dorumon is 's Digimon partner.

Dorugamon
Dorugamon is Dorumon's primary Champion form.

Reptiledramon
Reptiledramon is Dorumon's secondary Champion form.

Later, Dorumon digivolves to a Reptiledramon and is attacked by a horde of Kuwagamon and Okuwamon led by GrandisKuwagamon. He digivolves to Grademon to protect Kouta.

DoruGreymon
DoruGreymon is Dorumon's primary Ultimate form.

Grademon
Grademon is Dorumon's secondary Ultimate form.

Alphamon
Alphamon is Dorumon's secondary Mega form.

Alphamon Ouryuken
Alphamon Ouryuken appears when and  combine their powers to become stronger in order to defeat.