Rock A Block can not be explained, you can not be told what it is, you can only experience rock a block.
Early previews of Rock a block have shown it to defy categorization. The xbox indie channel submission page crashed when all the genres this game fits into where ticked.
It is all games to all people, to some its a racing game, to some its a pure puzzle game, others think of it fondly as a 3 dimensional journey though a twisted 6 dimensional hypercube of colour, form and sound.
Some people think its just a game.
Twist your thumbs and your brain, why not rock a block.