It looks like you're asking for key features of Angry Birds Action! (the pinball-style spin-off) when downloading its APK + OBB file (the data pack required for full game content).
Create a folder named com.rovio.popcorn (the official package name for AB Action!). angry birds action apk obb
Here are the main features of Angry Birds Action! : It looks like you're asking for key features
If you meant a different "Angry Birds action" game (e.g., Angry Birds Epic, Angry Birds Transformers, or Angry Birds Evolution), let me know and I can list features for that specific title. Here are the main features of Angry Birds Action
In the original soft-launch version of the game, the story centered on a mystery following a wild party on Bird Island:
The OBB file is the game's data. Modern high-fidelity games like Angry Birds Action! come with massive assets: HD textures, 3D models, soundtracks, voice lines, and level data. These assets cannot fit inside a standard APK (which has size limits on the Play Store). Instead, developers package them as an OBB file.