Plummeter Trophy in The Bridge

You're likely to get this while searching for the wisps, but this trophy can be done at any time in the overworld. Walk outside of the house and shift gravity to the left or right so you're falling sideways. Be careful not to shift too far or you'll fly off the screen. You will automatically fall through any tree branches, but you'll land if you hit the house or any of the fences, so be careful of that.