Square Enix, Studio BentStuff
With the massive success of Crisis Core on the PSP, there was no question that it'd be well suited for it's own Ultimania. And that's exactly what it got in 2007 in Japan. Nearly 600 pages covering everything about the game including character bios, scenarios, settings, behind the scenes details - and a breakdown of the games 300+ missions.
This succeeded the previous Ultimania Omega; and 2 years later, would see the Final Fantasy VII 10th Anniversary Ultimania get released, which expanded across the compilation.
JAPANESE ISBN: 9784757521261 Year: 2007 Pages: 591