Board Thread:Questions and Answers/@comment-19840316-20140714150708

I'm just curious, because someone asked how to load custom sprites on the bottom screen, and the only answer he got was that it was impossible, and no one else (except me) said that it actually is possible. I have no idea if anyone else here knew because I never really see people talk about it, and it seems like it was only just recently discovered. People over at GameFAQs have discovered a bunch of new file types, including SPS0 and SPS1, which are basically SPUs, but for the bottom screen. So I was wondering if everyone here knew about it, or if it's always been known and I've just been oblivious. 