Obtain Pontius' magnetic shield upgrade. In single player mode, start the game as unlimited in order to swap between characters. In multiplayer mode, have a friend conjure a box as Amadeus, the wizard, for you. Transform into Amadeus, conjure a box, then swap back to Pontius, the knight. Approach the box, then grab it with the magnetic shield. Note: Make sure this is done in an open space so the box does not get caught in an obstacle. Throw the box up in the air then grab it again with the magnetic shield.