Okay, maybe not original, but good nevertheless
Indeed, after watching the reviews, I found that spin it up has some common traits with your game, but then again, it happens that sometime when you have this great idea, it has been done already by other people. It happens, there is nothing that can be done about it.
However, what those people seem to be forgetting is that adding to an existing concept is also an achievement. Of course, adding a second disc to the whole is not that big a change, but it added to the overall challenge. Compare that with some good selected tracks and you have a nice entertaining game.
And for those claiming that this flash is stolen: the way I see it, stealing a flash is literally taking the swf and posting it under your name. This guy made the game, as the game seems the same in general gameplay alone. If this is called theft, than what about those modern console titles? Could you call command and conquer stolen, because it builded further on the concept of real time strategy? And every tower game, does it mean if you make another tower game, it is also stolen? Heck, you could accuse the entire commercial industry of stealing then, because existing gameconcepts are being recycled since the beginning of games.
So, considering this, I cannot think of this game as stolen, but rather not entirely original. And thumbs up for the excellent work, as it is still a very enjoyable game nonetheless.