Special button combinations can be utilized during the heat of battle to execute more powerful moves, though relying on the most basic attack seems to be the most efficient tactic. (cogconnected.com)
Android also needs a keyboard which steps away from the traditional Windows and Linux keyboards, with special buttons for common Android features like apps drawer, multi-tasking, etc.. (indianexpress.com)
The only thing I don't like about that prediction is that projectiles are special moves and are always on the B / Special button in SSB. (reddit.com)