Stress Test
How many sprites can you display? And how does it effect the frame rate and memory usage of your scratch. Test it with this example.
It also shows how to animate a sprite.
Run it here
Hundreds of animated sprites at once. Point at one and it walks; press space and all of them run. How fast does it still go in your browser?
To run it on your own computer, copy the folder assets of the
source code next to the program.