When you mention "Brave", you mean a character in a game or application, and the built-in menu refers to the in-game function or option menu of the character, so how to find the built-in menu will depend on the specific game or application. In general, built-in menus can be accessed in the following ways:

1. Game setting options: In the main menu or setting menu of the game, you can find options related to the brave character or specific functions. This menu usually provides access to built-in menus.

2. Game guide or tutorial: Some games will provide a built-in guide or tutorial, which contains detailed instructions about the functions and options in the game. Looking at the chapters related to the built-in menu in the game guide will provide you with the information you need.

3. Role status interface: In some role-playing games, relevant built-in menus can be found in the role status interface or property panel. These menus may contain options such as task list, device management and skill setting. "My Brave" is a pixel-style barrage shooting RPG game, and you can freely team up to take risks. The game focuses on the pursuit of refreshing and exciting barrage shooting battles, supplemented by high degree of freedom and strategic undercurrent RPG development gameplay, creating an interesting pixel adventure world for friends.