This is my SuperCard DSTwo skin pack download section. Basically, what I do is compile all the EOS skins I could find, put them into one big pack (usually every 3 weeks or so) and give them to you!
Or when your player dies, you can say in code, if enemy exists, do nothing, but if enemy does not exist, then create enemy at certain spot. (This would be a pain tho for lots of emeies)