Hero abilities are special powers that can help you in battles. You can use them by selecting your hero on the battlefield and then tapping the ability icon. Make sure to use them strategically during tough waves.

Stars are earned by completing levels and achieving certain objectives. You can spend stars to upgrade your towers or unlock new heroes. Prioritize upgrades that fit your playstyle for better performance.

To improve your gameplay, focus on balancing tower placement, upgrading key towers early, and using heroes effectively. Learn enemy patterns and adapt your strategies as needed during different levels.

To unlock new towers, you need to progress through the game's levels and earn stars. Once you've accumulated enough stars, visit the tower upgrade menu to unlock and upgrade new towers. This will enhance your defense capabilities.

Challenging foes often require specific strategies. Here’s how to approach them: 1. Identify enemy types (e.g., fast or armored). 2. Use towers that counter specific traits. 3. Upgrade towers focused on these enemies early. 4. Utilize hero abilities to control the battlefield.