I have to complete:
3DS. Bravely Default, Soul Hackers, Devil Survivor Overclocked, Conception 2 (I want to unlock all the endings), Kid Icarus...
DS. Too many to count. And because most of them are pretty scarce and/or expensive, piracy is the only option. Blame the lack of a DS store on the 3DS.
Wii: Metroid Prime Trilogy and Twiglight Princess. I'll tackle some of its JRPGs when I get
PC: A lot.