In the current lore, there are many parallel versions of HomicidalKirby, including RealHomicidalKirby, which is HomicidalKirby's Twin Brother, according to homicidalKirby, they share all knowledge, but behave differently.
One of the things RealHomicidalKirby is known for is having a feud with HomicidalKirbyUnofficial, which is an outside entity, with no relation to HomicidalKirby or RealHomicidalkirby, and is simply and impostor with the goal of being noticed by Homicidal and maybe even taken in. Some speculate that Unofficial is Homicidal but from another Universe...
MiaKirb is believed to have some relationship with HomicidalKirby, perhaps being an alt.
Other Homs:
Homicidal Fluff: Homicidal Fluff is an outside entity, not recognized by HomicidalKirby, and is confirmed to be HomicidalKirby from another dimension.
$ddgi Hom is not really a HomicidalKirby but more of something you really shouldn't do