Just a few ideas that popped in my head. A lot of people talk about a few of these but the "simultaneous," the "touching color()," and the "toggle hide/show" blocks are the main ones. The simultaneous block would be able to do 2 things at the exact same time, and the toggle hide/show block would... toggle between hiding and showing. Before anyone explains that the toggle block is possible and/or EASY to do, note that if you really think almost all of these are already possible to make. The whole point of a block is to put a bunch of code into one tiny little block. Of course you can make it, I just don't want to spend the time remaking that code every time. And also the simultaneous block can be done with 2 separate broadcast scripts. I'm aware of that, too. The same reason as above, I don't feel like doing that every time. We'll all grow lazy eventually, admit it. And I'm not sure if you'll need me to tell you this, but the <touching color ()> block would be useful for detecting a certain color you picked from a rainbow color selector.. thing.. Or if the pen color is set to 24 or something, you can easily find that color. Consider these, scratch team!