There is also a chance of meeting a mysterious man who sells these for 100,000$ each a piece. He is called A Dimensional Drifter. He was seen by the starting Basement to the bottom right and at the end of the road. This page doesn't help you find them tough, so i'll tell you how to get 1 of them, buy three of the "coca" from the guy on the street selling it, and give all of that to the police officer with nothing over his head. Before you get the "coca" he'l have the sword and shield icon above his head. Once you give him all three "coca" he'l give you the Mobius Strip.