Wow, time flies. I remember surprising my wife with a Flame Red 3DS/3DL bundle on her birthday in December 2012. We were living in Vermont and we got up super early to drive down to a surprise location - our old neighborhood in Astoria, Queens. We spent the day going around NYC. Had amazing pizza at Motorino in the East Village, went to Times Square, Chinatown and Little Italy... came back to Astoria for a delicious dinner at a Mexican restaurant with some terrific cactus leaf tostadas. When we left the restaurant we forgot the leftovers so I ran back while my wife waited for me in front of the bakery whose cakes were featured in My Big Fat Greek Wedding. We got back to the car -- we'd parked under the Broadway St. Station -- and I put the leftovers in the trunk. I came back to the front seat and handed my wife a gift-wrapped box. I pretended to be confused and was like, "I found this in the trunk?" She's a huge Nintendo fan and was super elated. That little 3DS has gotten so many hours of play. Including many on that game, on DKCR 3D, and so many others.
I recently revisited 3DL. Earlier this year, or maybe last year, I replayed W1-8 and enjoyed it quite a bit. Then when I had to go to my hometown of Buffalo for a wedding in September, I played through much of the Special Worlds. A couple of those levels in particular are brutally difficult to me, especially getting all 3 coins in each. And that's even with 3D on. I played some (most? all?) of the game with it on this time. I don't usually do so with 3DS (prone to migraines) but it didn't effect me negatively (migraine-wise) much if at all here, and the added depth was really useful. Anyway, I'd played these harder levels before and got stuck on some of the same ones. A couple weeks or so ago I beat S8, which I'd forgotten unlocks a final level in W8. I beat that as well, both of those were pretty tough for me. I know there's a super secret final level (that I never unlocked when originally playing it, either) but I haven't gotten every gold flagpole yet (most of them, though) or beaten any levels with Luigi... I want to wait to go back and do that till the game is a bit less fresh in my mind. I'll probably do W1-8 then take a break then S1-8, again. It's a good incentive for an eventual replay.
I really enjoy the game quite a bit. It's an incredible, tight distillation of 2D Mario in the 3D space. The Christmas Mario Theme on 3DS has been on our home screen for nearly two years now, and uses the delightful music from this game.