HBD

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HBD (unknown acronym meaning) is a heart ^[1] disease from the Mega Man Battle Network series. Two known cases of it are revealed by the series: Hub Hikari and Mamoru. The former died (albeit preserved in a digital form), and the latter survived thanks to advanced technology. Because Hub was reborn as MegaMan, the NetNavi was able to immediately recognize the symptoms of HBD in an individual.

Symptoms include severe chest pain, and being unable to breathe. It is so rare that the only place they could've tested Mamoru for HBD was at Seaside Hospital. There are no curing medications. It is likely a hereditary disease/disorder that is only treatable and possibly cured with surgery, but the procedure's name is never revealed.

References

Mega Man Battle Network series
Main characters
Lan Hikari (MegaMan.EXE) • Mayl Sakurai (Roll.EXE) • Dex Oyama (GutsMan.EXE) • Yai Ayanokoji (Glide.EXE) • Eugene Chaud (ProtoMan.EXE) Tora (KingMan.EXE) • Mamoru Ura • Mick • Tab • Iris Dr. Hikari • Haruka Hikari • Ms. Mari • Higsby (NumberMan.EXE) • Mr. Famous • Baryl (Colonel.EXE) Dr. Wily • Professor • Lord Gospel • Dr. Regal (LaserMan.EXE) • Duo • Bass.EXE
Games
Mega Man Battle Network • 2 • 3 • 4 • 5 • 6 Rockman EXE 4.5 Real Operation • Mega Man Battle Network 5: Double Team DS • Rockman.EXE Operate Shooting Star Network Transmission • Battle Chip Challenge/N1 Battle • Phantom of Network • Legend of Network Rockman EXE WS • Axess Air • Medal Network • The Medal Operation • Battle Chip Stadium • Legacy Collection
Anime and Manga
MegaMan NT Warrior (anime) • Axess • Stream • Beast • Beast+ • Rockman EXE: Hikari to Yami no Program MegaMan NT Warrior (manga) • Battle Story MegaMan NT Warrior • Gekitou! EXE Kyoudai Rockmeen! • Zen'in Shuugou Gagtte!! Rockman!
Related Pages
NetNavi • Virus • PET • Battle Chip • Program Advance • Power Up • Navi Customizer • Emotion Window • Liberation Mission • Locations WWW • Gospel • Nebula • Darkloid • Cybeast