Even more awesome! You are a genius!
Well, had graphics nailed since 2008. just that they are my key point (If only I could sprite as well...), and scripting is a big "TO DO" thing, but even if I could, I would just get bored anyway.
GBA hack that isn't like the others... Would take a lot of effort! I suppose it is rare to see new things, but with your history, it would be obtainable. (Ever thought of recreating the Pokemon Academy from Pokemon Stadium 2 (if you ever played it) on GBA, so you can unlock more stuff as you go? I had that idea for a cancelled hack that me and a friend were working on, but I had no idea how to implement it (due to no scripting knowledge))