Excellent
this should be the standard for all flash mario games, uses elements from past mario tittles and wraps it up in a smooth and fresh package. The plot is ofcourse the standard save the stars/sprites to save the princess. As for music, so far from what I've played it has music from mario 64 wich fits it perfectly. The game play is another story, So far the game play is perfect. From the spin attacks from mario galaxy to Fludd from Sunshine, this game realy shows what a true mario game (or atleast a flash Mario game) should be like.
To wrap this review up in a word: perfect