Hmm...Golden Sun: Dark Dawn.
Okay, I'll say that it wasn't really a BAD game, but when compared to the previous two installments, it's kinda...well, it's sorta the Metroid Other M of its franchise.
Basically, if it was actually made into a GOOD game (as in, being a little more challenging, less "useless" dialogue (you know, things like EVERYBODY chiming in just to agree to every spoken line of dialogue), and...well, it could stand to look prettier, I guess. Maybe if it was actually successful, we'd get some RESOLVEMENT in a sequel of some sort. Maybe. Hell, maybe we'd finally get to fight Alex. Maybe.
As for ACTUALLY bad games...Sonic 06. "Interesting" plot, GREAT music...terrible everything else. I'd play it, but not as the broken mess it is now...unless its as a guilty pleasure.
Oh! Almost forgot to ask a question. So...how did you first learn about Untamed Heart?