Super Saiyan 2 (超サイヤ人ツー, Sūpā Saiya-jin Tsū) (abbreviated as SS2 or SSJ2) is a powerful Saiyan transformation, similar to the Super Saiyan form in appearance and attainment. In order to achieve this transformation, the Saiyan must first gain a huge amount of energy (usually by training), far beyond that required for the first Super Saiyan transformation. Once this energy is acquired, the Saiyan must experience a powerful emotional upheaval, much like the Super Saiyan transformation, but to a greater extent.