The Douse Drive Genesect is a member of the Genesect Army, a group of five ancient Pokémon revived from fossils that serve as the primary focus of the sixteenth Pokémon movie. Originating from a time 300 million years ago, this Genesect was resurrected by humans and modified with a powerful cannon on its back, to which the distinctive blue Douse Drive is attached. Unlike the others in its group, this particular Genesect is defined more by its gentle and timid heart than its formidable power as a prehistoric hunter. It possesses a kind and childlike personality, displaying none of the aggressive tendencies that drive its counterparts and instead simply expressing a deep, heartfelt longing to return to its original home.

Within the Genesect Army, led by a more forceful red-colored Genesect, the Douse Drive member is the most hesitant and uncertain. While the other members follow their leader's aggressive mission with conviction, this Genesect is doubtful and unwilling to fight, almost always acting under duress when forced by the Red Genesect's mental commands. Its kind nature is immediately apparent upon meeting Ash Ketchum and Pikachu in the Pokémon Hills nature park. Initially frightened, it quickly forms a sincere friendship with Ash, communicating its simple desire to find its way home and receiving a promise from the young trainer to help it. The Douse Drive Genesect shows a particular fondness for a rare ancient flower known as the Panna Lotus, a plant that grew in its original homeland from millions of years ago. Witnessing these flowers evokes a sense of childlike glee and deep nostalgia, further emphasizing its innocent, homesick nature.

The character serves as the emotional core and primary point of sympathy within the movie's conflict. Caught between its loyalty to its own kind and its newfound friendship with Ash and other Pokémon, the Douse Drive Genesect often finds itself in distressing situations where it is forced to attack the very friends it wishes to protect. Its primary motivation is not conquest or destruction, unlike the rest of its army, but the simple and poignant search for a place to belong. This longing is so powerful that when the Genesect Army first mistakes a modern city's skyline for their ancient home, this Genesect is the one who excitedly declares, I'm going home, highlighting the tragic misunderstanding that drives the plot. Its role in the story is that of a reluctant participant in the army's rampage, a peacemaker who eventually turns against its leader's destructive orders.

The key relationship that catalyzes its development is with Ash Ketchum. Through Ash's unwavering kindness and his promise to help it, the Douse Drive Genesect learns to resist the control of the Red Genesect. Its most significant act of development is a selfless display of courage and loyalty: when the Red Genesect prepares a lethal attack on Ash, the Douse Drive Genesect willingly sacrifices itself to shield its human friend, taking the full brunt of the blast and collapsing. This act of sacrifice not only demonstrates its complete moral break from the army's aggression but also serves as the pivotal moment that inspires the other Genesect and the wild Pokémon to unite, leading to the resolution of the conflict.

In terms of abilities, as a Genesect, it possesses immense speed and power, but its defining combat feature is the Douse Drive attached to its back. This Drive converts its signature attack, Techno Blast, into a powerful Water-type move. This ability proves crucial, as it repeatedly attempts to use its water-based attacks to extinguish the massive fires that threaten the city and the Genesect's nest at the climax of the film, trying to save rather than destroy. Through its journey from a timid, controlled follower to a brave individual who defies its leader for the sake of friendship and peace, the Douse Drive Genesect ultimately helps its entire army find a new homeland, finally fulfilling its simple wish to go home.