Patamon

Patamon is a main character in Digimon Adventure and Digimon Adventure 02, as well as the movies Digimon Adventure (The movie), Our War Game!, The Golden Digimentals and Diaboromon Strikes Back. Patamon can be seen as one of the most important Digimon throughout the first season, because without him Devimon would never have been defeated and Myotismon would have killed Kari and Piedmon would have won the final battle.