Light and dust effects in black and white.

So I need effects for a little game I'm working on, but no idea how to do it.

The idea is some "transportation point" that will allow the actor to move to the next scene, and I want it to have a futuristic and dynamic look, maybe even to glow.

But because the style of the game, it'll look weird if I used an alpha channel, and the pixelart is out of my abilty anyway.

So, anyone know how to achieve that effect?

Link to the game, just in case you want to ask.
http://www.stencyl.com/game/play/6748

Well there is a behavior that creates dust in the stencylforge you can try that. Called Create Dust.

No. Create dust generates a bunch of identical pixels behind the actor. The effect I'm trying to make is stationary.