SCRATCHTUBER (ft. @DK_MiniGame) There is a slider to select a backdrop at the bottom of the screen, but if you press the spacebar, you can put the name of a backdrop to set it as that instead (after using the spacebar command, the slider will no longer be usable).
Skags by @DK_MiniGame The project uses the 'volume' block so make sure scratch has access to your microphone! I might use the volume block for a fully functional "Talking Ben on Scratch" project eventually, this is basically the foundation of that.