When broken, many items tumble out of crates and barrels.
Previously, wooden crates and barrels were pretty much your common or garden variety.

This time around, these items change visually to match the mood of the stage.

On sci-fi type stages they take on a futuristic tone.

On more fantastic stages, they look more like presents.

When you receive a present, open it! There are items inside!
Use them as you will.

…By the way, this time we’ve thrown "rolling crates" into the mix.

Just when you think you’re going to break it open to get the prize inside...

...off it goes!

It...makes things hectic!

Be careful and make sure you don’t get knocked for six by a box madly rushing downhill.