Click on icons to open apps, press the X key to exit apps, press the S key to stop the music, for the LEGO app you need to have a LEGO Boost connected, for YouTube, for Chat I can't do anything because the Scratch Team said that we can't do cloud chat..., at Chrome you can search just "scratch.mit.edu". COMMAND LIST: Help Lock Open Chrome Open Youtube Open Lego Boost Open Music
Thanks to -DiNamIK_UA- for the Tesla costume. Please check the other Scratch OS™ versions at my profile! :D