I'm not really talking about games necessarily. For example, the original Gameboy had the Gameboy Camera and printer which was a lot of fun. I loved messing with it in the 90s. I skipped the GBA but I did have a DS and used the Korg MS-20 program for it. That thing was really cool because you could use it to turn your DS into a musical sampler to write legit songs with it. I actually used it in a band for awhile running through some guitar effects. Is there anything like this for the current system?