There are sixteen hearts hidden in sixteen worlds. They are so hidden that they can hardly be found. But if you collect all the energy balls of a world, you will get a hint when you pass. Even so, to find them, you still need to have extraordinary ideas and precise operations. Can you succeed?

There are sixteen hearts hidden in sixteen worlds. They are so hidden that they can hardly be found. But if you collect all the energy balls of a world, you will get a hint when you pass. Even so, to find them, you still need to have extraordinary ideas and precise operations. Can you succeed?