Frosty shows one way to create particle goals in Bifrost using a basic particle graph.
A relatively simple thing to do with nParticles is to create particle goals. With Bifrost, you can create a custom effect, likely inside the custom effects compound.
Frosty shows one way to create particle goals with the basic particles graph in Bifrost using the Property Proxy Feild.
Bifrost is an excellent playground for playing with particles and effects. A previous tutorial from Frosty shows how you can emit particles on surface collision in Maya.