Well, I played this for a few hours and I think it's absolutely amazing, I just love it. There were a few bugs but they more added to the personality of the game than anything -for me atleast-. I did not come across any game-breaking bugs or currupt saves. I AM waiting for patches though, only because I enjoyed it so much I want to play through in the best possible shape. I mean, if they're going to improve combat/hit detection, and add more quests...I want all of that.
I LOVE the music, love the art, and the story is just ... interesting, and sometimes even subtly creepy. I'd prefer it to be in color, but atleast they use the Black and White as a plot device, which is really neat. Sometimes I even get a bit of a "Hotline Miami" vibe, just from some of the...trippy psychedelic things that happen, but maybe that's just me.
I actually never played many portable games. I'm an older gamer and most of my RPGS were NES/SNES/Genesis and this still brings back memories. Something about it gives me a real "Crysalis" vibe. "Lagoon" too. I'm sure it's closer to the Gameboy "Final Fantasy Adventure" game, but I didn't really play that.
Probably also inspired by GBA's "Sword of Mana".
Anyway, I love it. If it weren't being patched more I'd just play through it right now and enjoy every minute of it (which is rare for me nowadays, I have almost 200 games and only a few really keep me interested.)