The Biobrain is a boss in Star Fox Command. It is the 1st form of the cores found in the game which shut down enemies according to R.O.B. 64. In order to defeat the Biobrain, the player must destroy the 5 triangles around it, then attack the Biobrain itself. As the player attacks the Biobrain it divides like a cell. Doing a Barrel Roll stops the Mini-Biobrains from hurting the player's ship. The player also gains time by doing this.