I got one! Been a Nintendo fan through and through for many years now.
Just soo high quality and perfectly tweaked gameplay in pretty much everything they do.
My must-try list of retail, apart from all with Mario, Zelda and Nintendo in their title, would be :
Pikmin 3 (Among my favorite games. Beatiful, cute and with elements of everything. Also among the best 2p co-op I've played)
Donkey Kong Country: Tropical Freeze (Amazing quality and attention to detail)
The Wonderful 101 (Takes a while getting used to, but terribly entertaining afterwards)
Game & Wario (Mostly just small innovative games, but also very fun in multiplayer)
Deus Ex: Human Revolution (Great thought-provocing story)
Mass Effect 3 (Epic space-opera, really good story)
Batman: Arkham City (Atmospheric and intense)
Rayman Legends (Beautiful 2D graphics and many cool ideas)
LEGO City Undercover (Soo much more fun than it might seem at first)
Scribblenauts Unlimited (Highly imaginative and fun)
Wii Sports Club (Even better than the originals)
Maybe also, depending on taste :
Zombie U (Hard and unforgiving, but with some interesting ideas)
Need for Speed: Most Wanted (Good balance between arcade and simulation racing)
Injustice: Gods among us (Well-tuned fighting for comic fans)
Monster Hunter 3 Ultimate (Takes looooong to get into, but rewarding and fun online)
And for downloadable eShop titles :
The Cave (Cool story and well-balanced adventuring)
Stick it to the Man (Really great and different adventure)
NES Remix 1 & 2 (A cool way to relive classics, in arcade-sized bits)
Nano Assault Neo (Perfect arcade shooter with really good graphics)
Child of Light (Beautiful and serene rpg)
Guacamelee! (Hard but rewarding metroidvania adventure)
Wii Karaoke U (Thousands of songs = perfect game-night)
Trine 2 (Beautiful and clever)
Art of Balance (Best puzzle game I've played)
Also depending on taste :
DuckTales: Remasterad (If you've played/like the NES original)
Spin the Bottle: Bumpies Party (Requires loads of people)
Just received Bayonetta 1 & 2 today too. Can't comment yet, but I believe they are both pretty much perfect games if you can stand some rather silly and sexist content here and there.)
Can tell more about them if you want!