There are only three pieces to fit in the box and yet the Rollercoaster is an interlocking puzzle, a dexterity puzzle, and a packing puzzle all rolled into one. And it’s hard!

According to the designer (Laszlo Molnar) the uniqueness of the puzzle is that it’s meant to be a put-together puzzle AND a dexterity puzzle in one. The puzzler should carefully move the box and pieces, always holding them in the right direction, but without touching the pieces inside the box.