Just as in any Mario game, there are plenty of bricks that can be broken, but without his signature jump, breaking them down will be a bit harder. Luckily Toad can pluck and throw turnips which will break down the usual brown bricks, but big grey bricks are a more difficult story. They require a pickaxe to bash through, which will swing wildly like the hammer from Donkey Kong. You can pluck a pickaxe from a turnip patch, but before you collect it, make sure to identify where any grey bricks are so you can head over and smash through them.