In HellCopter, players control a helicopter to complete various missions, such as rescuing civilians, battling enemies, and collecting resources. Each level has specific tasks that must be accomplished to progress.

To upgrade your helicopter, collect resources and currency earned from missions. Navigate to the upgrade menu, where you can choose specific upgrades like improved speed or armor to enhance your helicopter's performance.

Focus on maneuvering to avoid enemy fire and obstacles. Prioritize rescuing civilians for bonus points and gather resources on the way. Use power-ups wisely to gain an advantage in tough missions.

To access new missions, complete the current ones successfully. Progress through the game allows you to unlock new areas and levels. Check the map regularly to see which missions are available.

Power-ups are critical for gaining advantages in tough situations. To use them effectively: 1. Collect power-ups during missions whenever possible. 2. Understand the type of power-up - defensive or offensive. 3. Activate them at strategic moments, especially when facing swarm enemies or during critical rescue missions. 4. Monitor the duration of the power-up to maximize its benefits.