What Lies in the Multiverse

"Pickable boxes" are the ones you can carry, they're about half the height of the character and look like three brown lines stacked horizontally. They respawn when they break, and break VERY easily (drop them from a height o 2 blocks and they shatter), so the first time you see one just pick it up and break it 15 times in a row. You can also crush them with a moving platform, that works just as well as dropping them.