Human form

Several Digimon have the ability to take on a human form. This is usually done to avoid suspicion while in the Human World, and generally hinders their combat abilities.

Possession of a human form is usually a character trait, rather than a species wide ability, although there are exceptions.

Digimon Xros Wars
After his death at the Xros Heart United Army's hands, reincarnated as the  through unspecified means.