Crisis Core Star Makes Kingdom Hearts: Birth By Sleep Cameo - Siliconera

Zack Fair, from Final Fantasy VII and Crisis Core, will make an appearance in Kingdom Hearts: Birth By Sleep.

Kingdom Hearts Birth By Sleep: Terra's Journey - Siliconera

Kingdom Hearts Birth By Sleep: Ven's Journey - Siliconera

Crisis Core Reunion devs reveal how the remaster will “enhance” FF7 Rebirth

Welcome to the Hells Gallery

Latest - Siliconera

Cloud Strife/Other appearances, Final Fantasy Wiki

News - August, 2010

Sephiroth (Final Fantasy), Neo Encyclopedia Wiki

Square Enix - The Offical Final Fantasy Thread, Page 27

The Unknown - Kingdom Hearts: Birth by Sleep Guide - IGN

Kingdom Hearts 3 Modder Gives Sora Thunder Surge, Proves How Broken It Is

Kingdom Hearts: Birth by Sleep on KH-FanArtOCSpanish - DeviantArt

Kingdom Hearts: Birth by Sleep / Awesome - TV Tropes

Crisis Core: Final Fantasy VII Reunion and Final Fantasy VII Rebirth interviews - new information roundup - Gematsu

Crisis Core FFVII Reunion Interview: Tetsuya Nomura Explains Whether The Game Is A Remake or Remaster - GamerBraves