you can get mcu bricker which makes your led turn rgb. you can play any game from the old 3ds/2ds libraryusing hshop. you can read ebooks with the ebook reader on the universal updater. i think the old 2ds can run pinbox which lets you stream your pc to your 2ds/3ds console.

you just modded it?

you can get infinite play coins, use save editors, get streetpass from home