Spencer Damon first encountered BanchoLeomon when looking for King Drasil. BanchoLeomon asked him which was better: a god or a Bancho? The two fought in a battle that ended much like Marcus and Agumon's. He became friends with him and later transformed BanchoLeomon to BanchoLeomon Burst Mode to fight the Royal Knights member Craniamon. When BanchoLeomon disarmed him, King Drasil appeared and it appeared that Spencer would finally be able to make peace between the two worlds. However, when Kurata attacked the Digital World the first time, Spencer was imprisoned. When Spencer bet his life that it would not happen again, BanchoLeomon stood up for him and King Drasil gave Spencer another chance. BanchoLeomon was there when news about Merukimon's deletion at the hands of Gizumon XT reached King Drasil. When the other Royal Knights members surrounded Spencer to execute him, BanchoLeomon jumped in the way and punched Spencer himself, and part of Spencer's soul was transferred into BanchoLeomon before King Drasil took his body.
BanchoLeomon first appears to the DATS members when he takes out all the Gizumon XT sent by Akihiro Kurata. He later trains Marcus Damon, Thomas H. Norstein, and Yoshino "Yoshi" Fujieda on how to master their D.N.A. and their mega forms. After ShineGreymon, MirageGaogamon, and Rosemon won against BioThunderbirdmon, BioQuetzalmon, and BioStegomon, BanchoLeomon pointed to the direction where the Sacred City is and left. BanchoLeomon later appears in the Real World to tell Marcus and Agumon that the GeoGrey Sword plays a part in unlocking ShineGreymon's Burst Mode. When Kurata/Belphemon's attack broke the boundaries of the Real World and the Digital World, BanchoLeomon released Spencer's D.N.A. within him to slow it down, freezing itself in place, until Craniamon somehow released him and replaced him. He appeared at King Drasil's lair and revealed to Marcus the whole story about his link with Spencer. He sacrificed his life for ShineGreymon to take out Spencer possessed by King Drasil.
- Flash Bancho Punch
The name "BanchoLeomon" refers only to the Mega form of this Digimon. Throughout the series, BanchoLeomon demonstrates the ability to Burst Digivolve into Burst Mode, with a different name and special attack. However, BanchoLeomon is his preferred form and the one he spends most of his time in.
BanchoLeomon Burst Mode
Notes and references
|Digimon Data Squad|
|DATS Members:||Marcus Damon and Agumon | Thomas H. Norstein and Gaomon | Yoshino "Yoshi" Fujieda and Lalamon | Keenan Crier and Falcomon | Miki Kurosaki, Megumi Shirakawa, and PawnChessmon | Richard Sampson and Kudamon | Homer Yushima and Kamemon|
|Antagonists:||SaberLeomon | Gotsumon | Akihiro Kurata and Gizumon | Bio-Hybrids | Belphemon | Argomon | Royal Knights | King Drasil | Tsukasa Kagura|
| Other characters:||Spencer Damon and BanchoLeomon | Sarah Damon | Kristy Damon and Biyomon | Merukimon | Rhythm | Kosaburo Katsura and Biyomon | Yuma Kagura and Renamon | Masaki Nitta | Other characters|
|Relationships:||Marcus Damon | Thomas H. Norstein | Yoshino "Yoshi" Fujieda | Keenan Crier|
|Other media:||Ultimate Power! Activate Burst Mode!! | The Digital World in Imminent Danger! | Digimon World Data Squad | Digimon World DS | Digimon World Dawn and Dusk|
|See also:||Digimon | Digital World | Digimon Natural Ability | Data Link Digivice | Digi-Egg | List of episodes|