It depends on how low a FPS you're willing to play with. http://youtube.com/watch?v=ttEEcvJn3ME
Is that just like, a few hundred prints changing?
No, it's a thing Xalos made. Each of those pixels is a square from an emitter and they're controlled by events.
What? I made it, there's no emitters and no events.
So was I right then?
Yeah, I meant particles. That's what Xalos's does too.
.. no, by particles I meant a scripted particle system that represents particles as colored points with a position and velocity on the screen. The screen itself doesn't use particles or emitters.