The new emitters are fantastic, and although they have many uses it seems that they are limited to rather regular motion. It would be nice if options were added to randomize the emitted particles movement a bit, such as for drifting tufts of dandelion seeds. It would also be nice to have another form of movement in the options to allow for constant force, useful if you want an emitter to ignore friction on one axis, but not the other.
This update has been fantastic and has inspired me to make another level, something I haven't done in well over a year. Keep up the good work!