Ye 3DS, I don't use the 3D though because I hate 3D lol. It's a turn by turn strategic RPG, you move your units around the battlefield in strategic ways so your units don't, y'know, die.
Frame data is the measurement of a moves length in a unit of time. Each second has 60 frames in it, so we could say "Marth's fair hits on frame 6! But Ganondorf's Warlock Punch hits on frame 30!"
Note those numbers are purely fictional, idk what frames those moves hit on since I haven't looked at them.
The character in my avatar is from an old anime called Digimon Frontier. Basically the 4th season of Digimon.
So what about you? You're pretty new here. Been to a tournament yet? :D