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Verify your self-worth through commitment.
— Bobby is introduced to his third test[src]

The Impalement Wheel is a trap from the Saw franchise, appearing in Saw 3D.

Design and Function

This was the third trap in Bobby's Trial. The victim of this trap was strapped to a plate in the center of a large metal wheel, by several leather restraints in a horizontal position. To prevent the victim from moving their head, it was held in place by a metal ring screwed onto the plate. In front of the wheel was a contraption with three pointy metal rods. Once the game began, the wheel started to turn forward, thereby slowly moving the victim into an upright position via a pulley system. Eventually, this would cause the three metal rods to pierce the victim's eyes and mouth, killing the person in the process. To survive, the test subject had to rely on the help of a second person. This person had to step into another machine across from the wheel and lift two metal bars with a heavy weight attached, to the highest point in order to close a circuit. However, in doing so, four metal spikes pierced the subject's obliques, two on each side of their body. To save the victim in the wheel, the weight had to be held up for the duration of at least 30 seconds. (Saw 3D)


Bobby Dagen's Test

Hello, Bobby. The feeling running through your body is fear: the fear of not knowing if you have what it takes to survive. Before you is your lawyer, who swore the Code of Ethics, but chose to see no evil, in order to benefit herself. Once her device begins to rotate, it will pierce her eyes and mouth if you don't delay its movement for at least 30 seconds. To do this, you must step into the other machine and lift the bars to the highest position, long enough to close the circuit, slowing down her device. If you do nothing, she will wind to her death before the clock runs out. Do you have what it takes to help her? Make your choice.
— Bobby Dagen's tape[src]

One of the persons tested in this trap was Bobby Dagen, a man who had gained wealth and fame by publishing his book "S.U.R.V.I.V.E. - My Story of Overcoming Jigsaw", in which he told his readers how he supposedly survived a deadly trap set up by the Jigsaw Killer and how his life developed afterwards. In fact however, he had never been tested by the killer and his whole story was nothing but a lie. The other subject was Suzanne, Bobby's lawyer, who supported his lie for the sake of gaining wealth even though she knew that his story was merely fabricated. One day, both of them were abducted by Detective Mark Hoffman, the successor of the late John Kramer, better known as the Jigsaw Killer. After subduing them, he took them to the abandoned Clear Dawn Psychiatric Hospital, where he placed Suzanne in the trap. Furthermore, he prepared the deadly game for Bobby.

Bobby tries to free Suzanne

As Bobby made his way through the building, he eventually reached a door with the words "Verify your self-worth through commitment" written on it. When he entered the room, he immediately heard a woman crying. Thinking it was Joyce, his abducted wife, he yelled for her, but soon recognized it to be Suzanne strapped into the wheel when the light went on. Bobby asked her if Cale, his manager and best friend, was trapped somewhere as well. However, she only further panicked and yelled at Bobby to free her. As soon as he tried to remove her straps, a large cylindrical cage similar to the one he woke up in, burst through a window. Inside the cage was a mechanical ventriloquist puppet, which provided the instructions for the next game. In order to save Suzanne, Bobby had to step into the second machine and lift the heavy weight in order to close the circuit for the time of 30 seconds.

Bobby lifts the bars

After Bobby received his instructions, the wheel started to turn a frantic Suzanne - signaling him to step into the machine and lift the two bars with a weight attached to the highest point. As soon as Bobby began lifting, four spikes pierced his obliques, two on each side of his body. Bobby tried to endure the pain, but eventually let go off the bars. Becoming frantic for the life of his lawyer, Bobby found the strength after several attempts, to lift the weight up again and held it for seconds. He grew weary and found himself unable to hold on even longer and dropped the bars just mere seconds before the game ended. Unable to complete the task - the rods pierced into both of Suzanne's eyes and mouth - killing her. After witnessing her death before his eyes, Bobby hesitantly approached her with pure horror and disbelief. With a cloud of guilt, he then proceeded to his next test. (Saw 3D)


Suzanne's corpse

Within the next hour, the hospital was found by the Metropolitan Police Department. While a SWAT team made its way through the building in an attempt to find Bobby and end his game, they came across the corpse of Suzanne, who was still in her trap. Seconds later, the SWAT leader heard the agonized screams of Bobby in the distance. Therefore, the SWAT continued its way and left Suzanne behind. (Saw 3D)


  • This trap's alternative name, "See no Evil", is a reference to the Three Wise Monkeys from the Japanese myth - directly referring to Mizaru, the monkey covering his eyes.