Huh, thought I had a game break past the 500 hour mark but I guess not, atleast not yet! I knew New Leaf had finally become my number one though.

#10. New Super Mario Bros. 2 - 39:03
#9. Ocarina of Time 3D - 46:27
#8. Bravely Default - 108:16
#7. Pokemon Super Mystery Dungeon - 111:14
#6. Luigi's Mansion: Dark Moon - 158:21
#5. Super Smash Bros. 4 - 244:41
#4. Fire Emblem Awakening - 420:08
#3. Pokemon X - 441:01
#2. Mario Kart 7 - 448:18
#1. Animal Crossing: New Leaf - 486:41

One thing to say before I make this list I do leave my 3ds on all night to listen to game music so that's why the numbers are so high all games on this list I do or once did that

1. Tomodachi life (2326:56

2 face raiders (1110:08)

3 plants vs zombies (1061:28

4 battle of giants dinosaurs (959:17)

5 ssb 3ds (896:52)

6 mega man 6 (881:31)

7 the dempa men (826:03)

8 bird mania 3d (694:53)

9 Kirby's block ball (652:49

YouTube (627:08)

10 pokemon mystery dungeon sky (560:06)

I would have more if I added the times from what is now my brother's 3DS but here it is anyways:

1. Animal Crossing New Leaf (157:37)

2. Ace Attorney Dual Destinies (76:51)

3. Bravely Default (70:57)

4. Pokemon Y (59:48)

5. Project X Zone (59:46)

6. Senran Kagura (34:53)

7. Mario & Luigi Dream Team (34:26)

8. TLoZ: A Link Between Worlds (32:08)

9. Professor Layton VS Phoenix Wright (30:28)

10. Pokemon Alpha Sapphire (28:17)

1. Kid Icarus: Uprising [280:08]
2. Monster Hunter 3 Ultimate [170:37]
3. Pokemon Black [120:02]
4. Mario Kart 7 [118:54]
5. Animal Crossing: New Leaf [114:59]
6. Ocarina Of Time 3D [110:54]
7. Super Mario 3D Land [82:15]
8. Pokemon Y [71:45]
9. StreetPass Mii Plaza [67:51]
10. Pokemon Soulsliver [66:59]

I don't think any 3DS games I have right now/in the future will top KI:U's playtime. Please make a sequel Nintendo... There's even a slight metagame going on around 2013 in Japan.

there has to be a better way of doing that.

oh... wow o:

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Everything should be up to date! Let me know if your list is missing from the OP, or if there are errors!

Here it is, for what it's worth lol.

1. Radiant Historia 40:12. I spent so long trying to finish this game and I gave up before I finished lol

2. Pokemon Y 40:06

3. Paper Mario 18:56 

4. Etrian Odyssey Untol 17:31

5. Super Smash Bros 3DS

6. Super Mario Land 9:19

7. Nintendo eShop 6:02 And I haven't even bought anything from the eshop lol

8. StreetPass Mii Plaza 4:51

9. Mario Kart 7 3:08

10. Notifications 2:14. Yep notifications has more play time than Kid Icarus (45 minutes)

Platina isn't intrested in the Apps for the Ranking. Just the games. (Check Op.) So you should remove eshop and Notifications and add the next lowest games. The good thing is now Kid Icarus has a Chance to appear in your top 10.

Oh and you forgot your time for smash.

Top 10 Present:

1.) Pokemon Y - 150:04
2.) Bravely Default - 136:41
3.) Monster Hunter 4 Ultimate - 125:11
4.) Pokemon Shuffle - 124:20
5.) Kingdom Hearts 3D: Dream Drop Distance - 117:27
6.) Pokemon Omega Ruby - 93:02
7.) The Legend of Zelda: A Link Between Worlds - 80:56
8.) The Legend of Zelda: Ocarina of Time 3D - 76:39

[Nintendo eShop] - 65:15
[StreetPass Mii Plaza] - 59:28

9.) Resident Evil: The Mercenaries 3D - 52:40
10.) Monster Hunter 3 Ultimate - 51:05


September thread:

1.) Pokemon Y - 150:04
2.) Monster Hunter 4 Ultimate - 120:24
3.) Kingdom Hearts 3D: Dream Drop Distance - 117:27
4.) Pokemon Omega Ruby - 93:02
5.) Bravely Default - 81:49
6.) The Legend of Zelda: A Link Between Worlds - 80:56
7.) The Legend of Zelda: Ocarina of Time 3D - 76:39
[Nintendo eShop] - 63:39
[StreetPass Mii Plaza] - 58:26
8.) Resident Evil: The Mercenaries 3D - 52:40
9.) Monster Hunter 3 Ultimate - 50:22
[Internet Browser] - 47:12
10.) The Legend of Zelda: Spirit Tracks - 45:40

Bravely Default and Pokemon Shuffle are the two biggest changes. 
I suspect that the two Zelda titles that were released this year will rank next time.

I need to know your time for Smash to add it in the list, and it would be great if you excluded applications, but if you don't have more than 10 games, that's fine then

You definitely should finish Radiant Historia though, I really liked it, despite it being quite difficult!

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Updated as of this post!