The special zombies in Road to Survival 2 were produced by mutated creatures. In the process of zombie evolution, a substance called a "virus" would infect zombies, causing their DNA to mutate and produce unique characteristics and behaviors. When the number of infected zombies increased, they would gradually develop special abilities such as super strength, speed, stealth ability, or aggressive claws and teeth. Some special zombies could also be summoned, usually through some specific device or program. These summoned special zombies had different abilities. Some could fly, some could swim, and some could release flames or explosives. Therefore, in the world of Survival Path 2, special zombies became a very threatening creature that required players to deal with and eliminate them.