Most of the feedback so far critizes that you need to “backport” something. Please don’t take “backport” too serious. I’ve changed the description now to backport/convert.

If you have graphics and sound from a homebrew NDS game and the GBA version looks like the NDS version, it will be counted as “backport” 🙂 In simple words, use your resources of the NDS version, the code can be brandnew too.