Dorumon (Chronicle)

Dorumon is 's Digimon partner.

Dorugamon
Dorugamon is the initial champion form of Dorumon, Kouta's partner.

Reptiledramon
In Chronicle 1.5, Kouta's Dorumon is 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 the initial ultimate form of Dorumon, Kouta's partner.

Grademon
Grademon is Dorumon's second ultimate form

Alphamon
Alphamon is the final Mega form of Dorumon, who is Kouta Doumoto's partner.

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