Hello I am using a m3ds Real with a ds lite. I tried using download play when I booted a nds rom(mario party) my friends could find me and the joined and then it started to download to their ds. After it was done it went to the Nintendo screen and froze their ds. I just found that there was a button (Y) and it says download play, do I use that to play other people. If my problem relates to something else help would be appreciated. Also the wifi went to red to green back and forth on the little wifi icon that looks like a cell phone tower type thing. Also I was able to trade pokemon in diamond version with no problem. Is there any to play wirelessly from a gba rom on the ds to a gameboy advance sp. Like if I had a pokemon emerald game on my nds and my friend over here has a sp would we be able to play the game together?