Click the green flag to generate a super slow motion lightning strike. Use turbo mode to turn off the slow motion (thanks to @Goastpirate307 for the idea). You turn on turbo mode by shift-clicking the green flag.
This is based on various actual super slow motion footage, but I have simplified it greatly. And I haven't tried to replicate the actual process - only its appearance. Still, I think it looks quite cool :) If you like this, you might like my earlier much simpler lightning project "Lightning (just 27 blocks)": https://scratch.mit.edu/projects/424398372
