The band's music was a very raw, fast, simple and lo-fi brand of black metal, with most songs composed of basic drum patterns, a couple of riffs, and unintelligible vocals.

The band's style has been compared to hardcore punk in its simplistic ferocity and short song lengths.

Of all the released music, the only Ildjarn song to have its lyrics published was "Eksistensens Jeger", from the self-titled compilation Ildjarn-Nidhogg in 2003.

However, in the Final Statement Vidar issued in 2005, he stated: "(...) I don’t wish to comment any more on subhumans such as gay human males.

They are the lowest of the low, like retards, Congoids (...)"[2] The related band Sort Vokter consisted of Ildjarn, Nidhogg and two other members known as Tvigygre and Heiinghund.