User blog comment:B214/Favorite characters/@comment-27091589-20151020180833/@comment-1359322-20151021084924

Well if anything it's more like he never had the chance to use it yet. Not sure if he used it after V3. Cause Ikki first named that move in V3, and he was taken in by the Ethics Committee where he was drugged and all. Then his final opponent is someone who knows the trackless step so he never got the chance to use it.