Bitterflies are referred to as Chonchons in Japan, which are a mythological creature from Mapuche mythology from South America. Sorcerers called Kalcus would perform rituals to transform into Chonchons. These creatures are shaped like a human head with large ears that can be used to make them fly. They can only be seen by other Kalcus or by magicians who want this power.
In Castlevania, they float around slowly, obstructing the path. They appear invisible for much of the time, but can be seen when the playable character is not moving. Touching them causes Curses. When killed, its skull will fall on the floor, producing a « kilk kluk » sound.
|Enemy Data: Bitterfly|
|Image||Name - Game|
|Mutated Insect. Visible only to magicians.|| Level: 33|
| Drop: Luck Potion, Mystic Pendant|| Necromancy Laboratory, Hell Garden (Saturn-only)|
|Invisibility is this creature's cloak, and its weapon.|| Strong: Light|
Weak: Slash, Ice, Darkness
Skill Pt: 1
| Misty Forest Road|
| ''Abil: ???|| HP: 230|
| Drop: Hamburger; ???|
Steal: ~1 silver, 85 copper
| Underground Caverns|