1. Completing Levels: As you progress through the levels, you will unlock new vehicles, including the helicopter. Make sure to complete all the levels in each world to increase your chances of unlocking it.
2. Finding Hidden Items: Throughout the game, you can find hidden items scattered across the levels. These may be coins, power-ups, or even vehicle parts. Collecting these items can increase your score and help you unlock the helicopter.
3. Unlocking Achievements: The game features various achievements that you can unlock by completing specific tasks. Some achievements may reward you with the helicopter or provide hints on how to obtain it.
4. Upgrading Vehicles: By upgrading your vehicles, you can increase their performance and abilities. Some upgrades may include unlocking new weapons, armor, or even the ability to fly. Upgrading your vehicles can make it easier to complete challenges and unlock the helicopter.
5. Participating in Events: From time to time, Burning Rubber 3 hosts special events where you can earn exclusive rewards, including the helicopter. Make sure to participate in these events to increase your chances of unlocking it.
Remember that the requirements for unlocking the helicopter may vary depending on your game version and updates. It's recommended to check the game's official website or in-game store for specific details on how to obtain it.