i use final cut pro.. but its probably the same.
so you have the video clip in the timeline..
copy it and paste it on top of the first clip.
so now you have 2 of the same video clips in the time line.
on top of each other.
now edit the first clip how you want it. [cropped so all the stats, and hp/mp bars are out.]
then crop the second video clip with just the Mp/Hp stat bars
now in the canvas you adjust the two cropped video clips so that the clip 2 is on top of the other clip [aka the mp/hp stat bars are now in the frame.. [you can see them]]
http://www.youtube.com/watch?v=tq7vVqrf-gw