| NAME | LEVEL | TYPE | GROUP |
| AeroVeedramon | Ultimate | Vaccine | Holy Dragon |
| Agumon | Rookie | Vaccine/Virus | Reptile |
| Airdramon | Champion | Vaccine | Mythical Animal |
| Akatorimon | Champion | Data | Bird |
| Allomon | Armour | Dinosaur | |
| Andromon | Ultimate | Vaccine | Android |
| Angemon | Champion | Vaccine | Angel |
| Angewomon | Ultimate | Vaccine | Angel |
| Ankylomon | Champion | Vaccine | Dinosaur |
| Antylamon | Ultimate | Data | Animal |
| Apemon | Champion | Vaccine | Animal |
| Apocalymon | Mega + 1 | Unidentified | Unidentified |
| Arca Demon Fresh | Fresh | ||
| Arca Demon Rookie | Rookie | ||
| Archelomon | Armour | ||
| Armadillomon | Rookie | Vaccine | Mammal |
| Armegemon | Mega | ||
| Arukenimon | Ultimate | Virus | |
| Aruraumon | Rookie | Data | Vegetation |
| Aquilamon | Champion | Data | Bird |
| Asuramon | Ultimate | Vaccine | Wizard |
| Aurumon | Armour | Virus | Bird |
| Azulongmon | Mega | Data | Holy Dragon |