Questions

[KoShiatar]

Maybe Nanaki/Red XIII was enhanced in some way, since hojo gaver him a number???

Thats what I was thinking, but Nanaki shows no sign of being enhanced in any way, so we can't really be sure.

I was also wondering, did Hojo tattoo his "specimens" as a habit? We know Cloud wasn't tattooed because he was considered a failure, but what about all the others?
Also, is it likely that he experimented on other humang beings other than those we know from the game?