Noisembryo contains vocals by Masami Akita himself. When asked what led him to include vocals in the album, Akita replied, "No reason for use my voice on Noisembryo. The voice was always meant a part of sound. I've never used vocals for singing- it's just another instrument. I just used it as sound, not really vocals."
Along with the standard edition, there was a special edition with the regular CD, cloth, T-shirt and can of mushrooms label "Noiserooms", packaged in a box and limited to 50 numbered copies. Most infamous was the Merzcar. Label owner Anders had a rundown Mercedes-Benz 230[disambiguation needed] that he rarely drove, and the police told him to move it or else it would be towed. So he rigged the CD player to play the label's newest release, Merzbow's Noisembryo, and made it impossible to turn off or remove. He then put the car up for sale as a limited edition of one. It went unsold and eventually broke down. Anders then removed the CD player and got rid of the car.