Gammamon (Ghost Game)

Gammamon is the partner Digimon of Hiro Amanokawa in Digimon Ghost Game.

Description
Gammamon is a Digimon that ended up with Hiro Amanokawa through his father, Hokuto Amanokawa. Brimming with curiosity, he has a habit of trying to bite everything. Despite being mischievous, he obediently listens to what Hiro and the others say. His favorite food is chocolate, going as far as calling it "Champion".

Compared to Angoramon and Jellymon, Gammamon's nature is more like that of a young child. He often uses descriptive words for food and often mispronounced certain phrases such as Trick and Treat as "Turkey and Treatment". This goes in line with him taking on the role of Hiro's younger brother. Despite his young demeanor, Gammamon can muster up the courage to confront challenges and think on the same level as his friends.

Gammamon's past is shrouded in mystery, when attempted to erase his existence from the past, the little traveler was shown to be confused as to what BetelGammamon was.

Except for Hokuto Amanokawa, Gammamon refers to any human by simply the first two in their names, like "Kiyo" for Kiyoshiro Higashimitarai or "Kota" for Kotaro Nomura.

Digimon Ghost Game
On October of Hiro Amanokawa's first year at Hazakura Private Academy, Gammamon is delivered to Hiro by, surprising the boy. A recorded hologram message from Hokuto Amanokawa explains to Hiro about and the, and asks Hiro to take care of Gammamon as a little brother. After Hiro manages to materialize Gammamon with the Digivice -V-, the two are attacked by, who wants to steal Hiro's time. Gammamon fights Clockmon, guiding him to a nearby park. Clockmon tries to steal Gammamon's time, causing a dark sillhouette to appear above him. Hiro figures out how to use Clockmon's power against himself and saves Gammamon. Hiro's determination to help his new brother causes them to synchronize through the Digivice, allowing the boy to call Gammamon's attacks. They defeat Clockmon, returning all the stolen time to its owners. Clockmon runs away, leaving Gammamon amazed by the power he received from Hiro.

Digimon Dreamers
Gammamon and Hiro walked past Ritsu Kodou,, , and.

Curimon
Curimon is Gammamon's Fresh form.

Gurimon
Gurimon is Gammamon's In-Training form.

BetelGammamon
BetelGammamon is one of Gammamon's Champion forms. It is offense-oriented. He specializes in combating with fire and melee-styled fighting techniques.

Gammamon digivolved to BetelGammamon to fight Mummymon.

KausGammamon
KausGammamon is one of Gammamon's Champion forms. He is flight-oriented.

Gammamon digivolved to combat the air bound Crowmon when and  weren't able to keep up with the large avian Digimon.

WezenGammamon
WezenGammamon is one of Gammamon's Champion forms. He is range-oriented.

Gammamon digivolved to WezenGammamon to fight Weedmon.

WezenGammamon shot a satellite out of orbit from Earth.

GulusGammamon
GulusGammamon is one of Gammamon's Champion forms. He is known as the "Dark Conqueror" (漆黒の覇王).

Initially, while his personality is merciless and psychopathic Digimon as shown he tries to attack his own partner Hiro and the others, including the opposing Digimon, he is actually a calm and genuine Digimon as shown after defeating Arukenimon.

When tries to steal Gammamon's time, GulusGammamon's silhouette hovers above him, terrifying the Machine Digimon.

When sacrifices himself to protect Gammamon from 's attack, Gammamon accidentally digivolves to GulusGammamon in a furious rage that rapidly saps the Digivice -V-. Demanding an explanation from Sealsdramon, GulusGammamon smirks at the assassin's shallow motivations and callously executes him. He dismisses the rest of the party and attempts to break out of the Pseudo Digital World into the Human World, easily fending off and  before Hiro steps between them, and memories of Bokomon cause GulusGammamon to de-digivolving back to Gammamon.

When Hiro is in danger when tries to devour him, an concerned Gammamon has no choice but to digivolve into GulusGammamon again and stops Arukenimon to prevent him from being devoured. GulusGammamon then proceeded to defeat Arukenimon with his Desdemona. When the fight ended, Hiro wanted to speak with him, GulusGammamon however calmly told Hiro to stay back and that he would speak with Hiro later in the near future before de-digivolving back to Gammamon.

When he witnessed Hiro turn into 's scarf and was filled with rage, Gammamon has no other choice but to digivolve into GulusGammamon. He wasted no time in defeating the Oboromon's new leader with Dead End Skewer and de-power the others' colors. Hiro angrily ordered him to stop GulusGammamon from depowering them and quickly accepts Hiro's words before he de-digivolved back to Gammamon again. The remaining Oboromon became amazed and refer GulusGammamon as the Jet-Black Champion.

When fighting against a misguided ShogunGekomon, Gammamon had no other choice to digivolve into GulusGammamon once again to save Hiro and the others by defeating him. Before being able to finish off ShogunGekomon, Hiro stopped GulusGammamon from proceeding to deleting him. GulusGammamon then questioned Hiro as to why he wouldn't synchronize with him. Gekomon begged him to spare ShogunGekomon's life and GulusGammamon agreed to Gekomon's words with a shrug. After Gekomon freed the people, GulusGammamon kindly told him that the time will come for when they will sync with him as he gives him a happy wink before de-digivolves back to Gammamon.

Canoweissmon
Canoweissmon is one of Gammamon's Ultimate forms.

digivolved to Canoweissmon to fight.

Regulusmon
Regulusmon is one of Gammamon's Ultimate forms as well 's Ultimate form once Canoweissmon separates with Regulusmon thanks to Gammamon's brainstorming. He is known as The Black Dragon of Destruction (破滅ノ漆黒竜).

GulusGammamon digivolved to Regulusmon to fight.

Siriusmon
Siriusmon is Gammamon's Mega form.

digivolved to Siriusmon to fight.

Gammamon Dim Card
The Gammamon DiM Card, an expansion for the Vital Bracelet Digital Monster series of virtual pets, is inspired by Gammamon and his evolutions.

Trivia

 * Gammamon is similar to Daiji Igarashi from Kamen Rider Revice.
 * Both of them have light and dark counterpart (BetelGammamon and GulusGammamon for Gammamon and Live and Evil for Daiji).
 * Both of them are separated and battle each others.

Notes and references
Gammamon (Ghost Game) Gammamon (Ghost Game)