I have a kind newby solution to the warp issue. Allbeit it's a pain in the bum, but it could work. You said that you had a Problem with creating sprites, but what if you place them in Amap, hid them from view and place a script at the start of each map that makes them appear. It would also check your position and then place them behind you. You would have to have a script for each place on every map though which would be annoying.