http://steamcommunity.com/sharedfiles/filedetails/?id=172338423
There is no ghost block to make all the other unbreakable boxes disappear. Scroll down if you can't see the whole picture so you can see the empty spot where the ghost block is supposed to be.
(Btw the driver shot at the top of the picture looks cool doesn't it :P )
Gotta push that button at the start of the level.