However, in the Tekkn 6: Bloodline Rebellion Artbook, which came coupled with the Tekken 6: Bloodline Rebellion Bundle, states that Tiger Jackson was an unused concept for Eddy Gordo not used for the final character. Namco has never said anything about this. It's not known whether or not that Tiger is a friend of Eddy's or a alternate-ego of him.
He is 'unlocked' by selecting Eddy Gordo with the Triangle or Start button (although Tekken 3 requires you to beat the game with seventeen unique characters first). Tiger Jackson was introduced in Tekken 3, and he returned for Tekken Tag Tournament, although this game is non-canonical.