Videogamer: "It's been a good year for the PSP, especially for quirky RPG affairs such as this. I was ready to dismiss Birth by Sleep as being just another spin-off; a quick cash in on the Kingdom Hearts name, but I'm happy to have been proved wrong. In many ways, it actually outshines its console counterparts. Bar a few niggling control issues, the battle system could well be the best in the series yet, and at times I actually felt it looked better than its PS2 cousins. For those still enduring the long and painful road to KH3, Birth by Sleep is a fantastic stop along the way."