I like it! - it reminds me of the TI-84 (I think it was that one?) back in high school where I could do bouncing balls and other animations.
This is simple enough and interactive enough where my kids could experiment with changing things just to get a feel for it.
Thanks. That was also my intention, to lower the entry level to programming a bit. Those old home computer BASIC variants were easier to learn compared to today's programming languages, in my opinion.