Just like with most other fighting game series, characters in Street Fighter have a tendency to change and evolve over the course of multiple iterations. Veteran combatants can gain access to new moves, but they can also seemingly forget other techniques.
MC MuraFGC recently released a video going over a few examples of characters in Street Fighter 6 that can no longer perform certain moves that they once had. There are some interesting cases outlined here.
Zangief’s Banishing Flat (the “Green Hand”) is perhaps the most talked about move in this regard. In Street Fighter 2 and Street Fighter 4, this move was often used by Zangief players to close the distance against opponents since it was typically faster than simply walking or dashing forward.
Ever since Street Fighter 5, Capcom has made it a point to emphasize Zangief a slow moving tank. He’s supposed to have trouble getting in on opponents, but his damage output on individual hits (like his Spinning Piledriver) is well above average.
M. Bison no longer seems to have access to his teleport or his Psycho Inferno in Street Fighter 6. However, M. Bison has ironically retained access to techniques like his Psycho Crusher and Double Knee Press despite having amnesia in the lore.
Finally, Cammy and Juri both used to have abilities that effectively functioned as counters in Street Fighter 4. It would seem that Capcom decided to emphasize their more offensive traits going into Street Fighter 5 and Street Fighter 6.
Check it all out in the video below: