Besides of the general hashtag #SamuraiShodown #SamSho and #サムライスピリッツ #サムスピ in Japanese, each character in the game has a specific hashtag which people should aim to use when posting tech for ease of searching. The rule of thumb is to start with #SS_ (for Samurai Spirits / Samurai Shodown) and append the first two letters of a character's name. In case of overlap, a different 2nd letter is picked. For example: Shiki (#SS_SH) and Shizumaru (#SS_SZ) or Haohmaru (#SS_HA) and Hanzo (#SS_HZ). The current list is as follows:

Character キャラクター Hashtag / ハッシュタグ Basara Kubikiri 首斬り破沙羅 #SS_BA Charlotte シャルロット #SS_CH Darli Dagger ダーリィ・ダガー #SS_DA Earthquake アースクェイク #SS_EA Galford ガルフォード #SS_GA Genjuro Kibagami 牙神幻十郎 #SS_GE Gongsun Li 公孫離 #SS_LI Hanzo Hattori 服部半蔵 #SS_HZ Haohmaru 覇王丸 #SS_HA Iroha いろは #SS_IR Jubei Yagyu 柳生十兵衛 #SS_JU Kazuki Kazama 風間火月 #SS_KA Kyoshiro Senryo 千両狂死郎 #SS_KY Mina Majikina 真鏡名ミナ #SS_MI Nakoruru ナコルル #SS_NA Rimururu リムルル #SS_RI Shiki 色 #SS_SH Shizumaru Hisame 緋雨閑丸 #SS_SZ Sogetsu Kazama 風間蒼月 #SS_SO Tam Tam タムタム #SS_TA Ukyo Tachibana 橘右京 #SS_UK Wan-Fu 王虎 #SS_WA Warden ウォーデン #SS_WD Wu-Ruixiang 呉瑞香 #SS_WU Yashamaru Kurama 鞍馬夜叉丸 #SS_YA Yoshitora Tokugawa 徳川慶寅 #SS_YO