Anthrax Gamma is the GLA's third generation toxins, developed by GLA general Dr. Thrax. This variety is even more lethal than Anthrax Beta. It costs $2500 to upgrade all GLA toxin units at the Palace. All toxin units receive a boost in attack. This variation of Anthrax shows a purple colour when used on the battlefield. Anthrax Gamma is available exclusively to Dr. Thrax and his commanders.