Any games like kingdom hearts birth by sleep for my psp?

Final Fantasy VII: Crisis Core or Final Fantasy Dissidia: Duodecim.

Those are the two best games on PSP. [With Birth By Sleep Rounding out the top 3]

Metal Gear Solid: Peace Walker is an amazing game and better than a core numbered MGS [It's 2 that sucks, and it's 2 that Peace Walker is better than]

Unfortunately, the controls on the PSP are terrible as it lacks a second analog-stick.

Final Fantasy VII: Crisis Core

This game almost made me cry (I'm usually pretty immune to sadness).