The Twisted Bridge is formed out of sequential movement of cubes which can be divided into 4 main stages starting from the entry point and ending with exist point:

 

 - Introduction : the first 7 same size cubes each one twists by 15 degree from its previous starting from the first point of the bridge.

 

 - Increasing: the next 6 cubes continues the twisting of 15 degree, but they increase in their sizes till the middle point of the bridge.

 

 - Decreasing: the next 6 cubes continues the twisting of 15 degree, but they decrease in their sizes.

 

- Conclusion: the last 7 same size cubes, each one twists by 15 degree from its previous ending with the last point of the bridge.