Aside from the massive graphical improvement, it's the same as the original PSP game that came out in 2007. That's not a bad thing though, revisiting the events leading into Final Fantasy VII is always a blast. While there have been minor improvements to combat, it feels largely the same as before. It's not quite at the same level as FFVII Remake, but still good in its own right. The random slots of the DMW giving random buffs, limit breaks and summons are a nice boost, even though they aren't largely required to get through the main content. The hype for FFVII Rebirth is higher than ever now the events of Crisis Core have been refreshed in my mind.