Okay, the game isn't that hard. You just need to relax and watch the notes on the screen. The first song is easy- if you can't do that then just play a different game. I'm actually better with the pro version of Mario and Zelda than the easier one because I listen to the song.
As for lag, I had none so stop blaming it. Seriously. The developer took a lot of time to get the songs and to make this game. I personally find this the best one out of all of the SBGMD games and got the medium badge without a second thought.
Cute, loved the humor of it. It would of been nice to be able to move the Wizard while the Ranger was attacking- having to wait that long for the turn-by-turn was painful. The enemies too forever to move too. I loved the idea though. I wish there was more of a customization to the game [be it the skills or the characters themself]. It was a cute game overall though.