The main objective of Bad Piggies is to help the titular characters build contraptions to transport them to their goals, mainly to collect eggs while overcoming obstacles and completing various levels.

To customize your vehicle, select the desired parts from the inventory during the building phase. You can combine different items like wheels, wings, and others to design a unique contraption for each level.

If you're struggling with a level, try breaking down the objective into smaller tasks. Experiment with different designs and components to make adjustments and optimize your vehicle for the challenges presented.

To unlock new levels in Bad Piggies, you need to earn a certain number of stars by completing previous levels. Focus on achieving the required score, which usually means completing challenges efficiently.

To collect all three stars in a level, follow these steps: 1. Analyze the level layout and identify star locations. 2. Build a vehicle that can successfully reach each star with the least amount of resources. 3. Test various designs to optimize for speed and stability. 4. Adjust your strategy based on the obstacles encountered, ensuring you meet all criteria for star collection.