This is level 5 of The Crystal Gallery.
Well, good luck. Really, this level isn't that hard, unless your computer lags. (I had to open about 15 tabs up and seven running apps to experiment with this.) Well then, if you are on Kongregate, I recommend you try a different device, like a home computer instead of your laptop.
The Runner, Bunny and Duplicator are the only characters that would allow you to pass the level without much difficulty... assuming your computer doesn't lag. :)