GamersMark: "Yggdra Union from Atlus has a seemingly awkward place in the PSP library. It's practically a straightforward GBA-to-PSP port, so it's quite obvious that it won't be visually pleasing. Yggdra Union is essentially the GBA game with some voiceovers and possibly some other improvements that are harder to gauge.
Typically in tactical strategy games there are two teams fighting against each other on more-or-less even ground. One would expect there to be new challenges here and there, just as long as both sides followed the same basic rules of gameplay.
Not in Yggdra Union.
If there ever was a tactical strategy game that made me want to play on the enemy's side, it's Yggdra Union. It's almost amazing to me how two different games are going on at the same time, with the advantage always (and I really mean it) going to the opposition."