This game is a quite good one if you like quick action, but it does not last. But if you take it from me the game isn't as good as the ad.
There are good and bad aspects to the game. If you like game with variety this is not the game for you. The only thing this sonic has to offer is quick clean fun.
The graphics are quite good but the the storyline and menu stlyes are not that great. It is about king Arther turning bad from his too powerful sword. A princess suddenly gets sonic falling from the skyand he gets a talking sword and helps to get rid of the dark creatures king Arther has.
At the end of each level you find that you have collected invisible items scattered around the stage. You have idenification points to identify the sword, stone, food, gem, book, flower, armor, or charm you collected. All of this goes in the treasures option in the menu.
Each level has a different goal to obtain but mostly it is to get to the end of the level. The game is in 3rd person and you travel from one place to another doing different tasks but the same location. basically the aim of the game is to fight through the swarms of enemys by waving the wii remote.
The music is quite good. The length is not. Each stage takes 1-4 mins and there are about 20 stages. If you take it from me, it is not the best of games and I think it is not worth it. Here is the product hyperlink if you consider it.Sonic and the Black Knight (Wii)