Cloaking through MOPixels
I just made an amazing discovery: MOPixels always overlay an MO that there on top of with there color. That means when the MOPixel's color is the null color (255,0,255), that spot turns into the background color!
In other words, you can cloak an actor completely with null-colored MOPixels. A bit laggy though, but the cloaked objects remain hittable.
Edit: Just did some further testing, it seems like it only works on MOSRotatings... And only part of the time.