You will need to find the secret area in Sector 5 - after the dark hallway where you need to roll the ball down, you will come to an open lobby that descends like an inverse pyramid and the path to continue is clearly ahead. Instead, go to the left and you will be transported through the wall. Walk down the passage and you will stumble upon this area.
Hit the reset button at the top and just push the ball down the hallway using the bumpers or triggers.
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