I know this fx can be done with events.. but i made it to exploit shaders.
Not finished yet, you can for example use it when you win game etc....
Original source from shadertoy converted in 5 min .. to C2
Look anyway if you are interested...
demo;
http://gigatron3k.free.fr/html5/C2/FX/dstars
This shader is done now.. Much faster than before.
For request special params please PM.
http://gigatron3k.free.fr/html5/C2/FX/dstar.rar