When it comes to popular fitness games Just Dance 4 for the Wii must rate as pretty average among a pretty bad bunch. The basic recipe is simple and is used by many titles, you get some exercise and hopefully keep fit by dancing to music, its not rocket science.
The immediate aim of the game is to copy the moves of the dancer on the screen, with the Wii control in hand to sense your movements. Your accuracy in following the on screen dance moves is measured by signals sent back to the game by your in hand Wii controller. The game is so simple that an explanation here is really not needed.
Each song has a different backdrop and this is supposed reflect the mood of the song and to some little extent it does so, with a little imagination on the player's part. Flashing lights recreate a club atmosphere and each attempt of the dancer is met by a round of applause at the end.
Perhaps the most important and entertaining part of the game is the song selection. This offers some of the best choices from recent top ten charts, but then so do most other games in this genre.
The only saving grace of this type of game is the element of competition which has been introduced, giving some incentive to the players to make some sort of effort, and creating some sort of party atmosphere, but I think that the party atmosphere needs to be there in the first place before anyone is likely to want to take part. Without the element of competition you might just as well turn on your radio of CD player and dance along.
I am sure these games are aimed at teenage or pre-teen girls, and there is nothing wrong in that, and so perhaps I am not the best person to commentate on this particular game, being neither teen, pre-teen or female, so I will give a rating from the perspective of its target audience, who will almost certainly mark it higher than me, and doing so, I think it is probably worth a seven from ten.