No matter how many times I see it. It's pretty awesome and a shame because of Zack's death.It makes it look that he's slowly dying loosing it memory due to the mako infestation he has plus the wounds from battle.He was and is the main character in the whole FF7 game at least for me.The last words of every memory makes it so touching.
Tseng: Be Alert
Sephiroth: We'll meet again soon
Cissnei: Zack I gotta go
Angeal: Join my battle
Cloud: Hold On
Aerith: I'll be here ...
Cissnei has to leave his memory so she says "Zack, I gotta go"
Cloud (who's near the area and can't fight) cheers him up with :"Hold on"
Aerith with "I'll be here" makes me think that she'll ever be in his memory.