Actually Culumon can digivolve and its mega form is Gankoomon! So yes it is!
beat the main quest(all of them) and go the gate area and go the other path talk to calumon and there 100% scan dat on calumon PS don't talk to calumon twice or you must watch the credits
first you must have beat all the main quest the last one is TAMER LEGEND!? afer you beat go to the main gate area and go to the other path and look around and talk to calumon but only once since calumon normally shows you the credits
reptiledramon cant digivolve. it does not digivolve
it does not digivolve because it is a mega
Elecmon is known to digivolve into BlackGarurumon who can digiviolve into ShadowWereGarurummon and then into BlackMetalGarurumon and Elecmon can also digivolve into Leomon who can digivolve into IceLeomon or GrapLeomon and can also slide digivolve into MadLeomon, IceLeomon can digivolve into SaberLeomon or Regulumonm, GrapLeomon can digivolve into SaberLeomon or he could DNA digiviolve with Pandamon in order to become BanchoLeomon. SaberLeomon can additionally digivolve into Dinotigermon.
Digivolve Megadramon or DNA Digivolve MameTyramon and MetalGreymon
It matters about the digimon, if you pass time it might digivolve to another digimon while some of them digivolve to another digimon if you have like 3 or more battles to make it digivolve. for an example: Greymon will digivolve to MetalGreymon with at least 10 battles, or he'll digivolve to MetalGreymon(Virus) if he has 30 Vaccine AP or he'll digivolve to SkullGreymon if you pass time. understand?
T.K's partner is Patamon and he could digivolve to Angemon and MagnaAngemon and could also armor digivolve to Pegasusmon, Kari's partner is Gatomon and she can not only digivolve to Angewomon but she can also armor digivolve to Nefertimon, Davis' partner is Veemon who could digivolve to ExVeemon, Paildramon and Imperialdramon and he can also armor digivolve to Flamedramon, Raidramon and Magnamon, Yolei's partner is Hawkmon who could digivolve to Aquilamon and Silphymon and could also armor digivolve to Halsemon and Shurimon, Cody's partner is Armadillomon who could digivolve to Ankylomon and Shakkoumon and he could also digivolve to Digmon and Submarimon and Ken's partner is Wormmon who is capable of digivolving to Stingmon.
They digivolve into Lucemon Chaos Mode.
Tai's partner was Agumon and he could digivolve to Greymon, MetalGreymon and WarGreymon, Matt's partner was Gabumon who could digivolve to Garurumon, WereGarurumon and MetalGarurmon, T.K's partner was Patamon who could digivolve to Angemon and MagnaAngemon, Kari's partner was Gatomon who could digivolve to Angewomon, Sora's partner was Biyomon who could digivolve to Birdramon and Garudamon, Izzy's is Tentomon who could digivolve to Kabuterimon and MegaKabuterimon, Joe's is Gomamon who could digivolve to Ikkakumon and Zudomon and Mimi's is Palmon who could digivolve to Togemon and then to Lillymon.
Yes, Tankmon can digivolve to Gigadramon as part of Digimon Story Lost Evolution but it cannot then digivolve to Gundramon and it needs to be BlackAgumon before it can digivolve to Gigadramon, in Digimon Adventure 02: Tag Tamers it can digivolve to Kokuwamon and in the Digimon World 2 game Tankmon is capable of digivolving to Candlemon and thhen it can digivolve into either Tinmon or SkullMeramon, in Digimon World Dawn and Digimon World Dusk Tankmon ca digivolve to ToyAgumon and then it can advance further to MetalMamemon.