Zim from Invader Zim is a Traumagenic Monoconscious NPDbased Factive-Heavy OSDD-1A System!
Traumagenic refers to a system whose creation / origin is the result of one or more traumatic events. Often, these systems have lingering trauma, and may fall under a diagnosis like DID or OSDD-1
Monoconscious refers to a system with only one consciousness. Members do not have an individual consciousness, but instead share the collective consciousness. Monoconscious systems may experience changes in fronting as a smooth transition rather than a sudden switch
An NPDbased system is heavily influenced by having Narcissistic Personality Disorder, with it possibly affecting the innerworld, headmate roles, or the headmates themselves, but isn't a system origin. For NPDbased systems, this can mean that the system has a very low stress tolerance leading to more splits in general, is more likely to split religious figures, celebrities, deities, attention seekers, nonhuman headmates, and similar
A Factive-Heavy system has a high number, or is mainly made of, factives, or outsourced headmates based on people who/things that exist in the outerworld. There is no set percentage or number needed to identify as factive-heavy
OSDD-1a is missing the distinct alters found in DID, preventing a diagnosis. Alters are more blurry between one another and often have a core or shell identity. The identities with an OSDD-1a system may be very similar or diverse; one common presentation is one individual within different "modes" or ages, like an angry self, a 12-year-old self, etc. OSDD-1a is different than typical mood changes due to the amnesiac barriers between headmates