Instructions
Using Screen Captures
Start "VBA" and click "File," "Open" to select the game you want to extract the sprites from. The latest version of the emulator is available from the VBA website.
Start the game and play until a scene where the sprites you want to extract are visible. Click "Options" and "Video" before clicking on the "Layers" option. Click once, one each layer, with a name that starts with "BG" to disable them. These are the background layers.
Click "File" and "Screen Capture" to save an image of all the sprites on the screen. The emulator allows you to save the image as a "PNG" or "BMP" file which you can now open with any image editing program.
Using the "OAM" viewer
Start "VBA" and click "File," "Open" to select the game you want to extract the sprites from. The latest version of the emulator is available from the VBA website.
Start the game and play until you reach a scene where the sprites you want to extract are visible on the screen.
Click "Tools" and "OAM Viewer." Drag the slider underneath "Sprite" (left on the screen) to cycle through all the available sprites currently displayed.
Click "Save" once you find the sprite that you want to extract. Type in a name for the file and select either the "PNG" or "BMP" format for the sprite. Click "Save" again to store your newly extracted sprite.