Children of Mana (DS). I'm a big fan of the Seiken Densetsu series, and i was all impatient to play this new one, and this game is crap. It's a shame to the whole series, not worth buying, not worth playing. Why ? Because it's just empty, not really nice looking (Sword of mana, on GBA, is much more beautiful), boring, uninteresting.
Consequently, i've not yet bought Heroes of Mana... and i don't know if i will :/
Lunar Dragon Song (DS). Well, it's pretty much for the same reasons. I'm a huge fan of the 2 first Lunar, the second is actually one of my favorite games, and i had great expectations about this one, i was waiting it (impatiently) like a sort of revival for the series, but my deception was as big as my hopes... It has some good ideas, but not very well used. They also changed the look of the game, for the worst. And most of all, this game has absolutely no soul. It lacks of what made the first 2, and that's a shame. I guess we will never hear about a new Lunar for a long time, since it has poorly sold :/