The Bubble Bobble DS I played was not a port... the controls were sloppy and unresponsive. I'm never been too good at games that require coordination, but that one was just frustrating. I couldn't even beat the first boss after I've tried countless times and in the end I sold it.

Harvest Moon DS... well, for reasons I can't make public but I'm sure you can guess I am one of the people who know best just how plagued by bugs that game is.
But what's Rune Factory like instead?