In particular, their 2002 album Oceanic – which showcased "buzzing washes of multilayered sound that ebbed and flowed in intensity", combining the "barbed guitars" and "shouted vocals" of post-hardcore with "meandering, psychedelic progressions" – has become regarded as a classic of the genre. At the same time, Hydra Head signed further prominent bands, releasing the early records of Pelican and Jesu.
The 2002 album Oceanic by this band is considered a classic in the genre, blending post-hardcore's "barbed guitars" and "shouted vocals" with psychedelic progressions. Hydra Head also signed other notable bands, including Pelican and Jesu, releasing their early recordings.