The main objective of Poly Bridge 2 is to build bridges that allow vehicles to cross various locations safely. Players must use available materials and physics to solve each level's unique challenges.

New levels in Poly Bridge 2 are unlocked by completing previous levels successfully. Higher levels often require more complex bridge designs, so each completed level helps to enhance your skills for upcoming challenges.

In Poly Bridge 2, you can use various materials such as wood, steel, and cables. Each material has its own properties, and understanding how to effectively combine them is crucial for building stable bridges.

To complete levels with limited resources, follow these steps: 1. Analyze the landscape and vehicle paths. 2. Use fewer materials, focusing on structural efficiency. 3. Test your design and adjust as necessary. 4. Iterate and refine until all vehicles cross successfully. Balancing resources and creativity is key.

For complex bridge designs, begin with a simple blueprint and gradually add elements. Consider using triangular shapes for strength, cable suspensions for stability, and ensure that all parts of the bridge are connected securely. Keep testing and tweaking until the bridge withstands the vehicle’s weight.