| 1 | O-bake no... Holly (Holly the Ghost) | 1991/01/28 | 684 | 51.70 | 32.97 | 1.57 /Very good | 21 | 31,691 | |
| 2 | Obake no Qtarou | 1965/08/29 | 436 | 54.91 | 56 | 1.60 /Very good | 38 | 63,608 | |
| 3 | Obakenoqtarou Tobidasebakebakedaisakusen | 1986/03/15 | |||||||
| 4 | Oban Star Racers | 2006/09/23 | 1,592 | 48.09 | 7 | 1.40 /Good | 6 | 5,896 | |
| 5 | Obatarian | 1990/04/03 | 2,689 | 47.11 | 0 | 0.00 /Normal | 5 | 5,791 | |
| 6 | Obetomo gakuen | 2008 | 2,517 | 47.25 | 1 | 1.00 /Good | 1 | 4,916 | |
| 7 | Obottyamakun | 1989/01/14 | 1,553 | 48.14 | 7.36 | 0.08 /Normal | 141 | 110,644 | |
| 8 | Ocha-Ken Chocotto Story | 2003/10/06 | 2,948 | 46.83 | -2 | -0.50 /Normal | 4 | 2,772 | |
| 9 | Ocha-Ken Hotto Story | 2003/10/06 | |||||||
| 10 | Oden-kun | 2005/04/08 | 1,530 | 48.23 | 8 | 0.50 /Good | 19 | 74,926 | |
| 11 | Odin | 1985/08/10 | 2,362 | 47.39 | 1.98 | 0.33 /Normal | 6 | 11,998 | |
| 12 | Off Side | 2001/05/10 | 2,403 | 47.25 | 1 | 0.50 /Good | 2 | 7,350 | |
| 13 | Oggy & Cockroaches | 1998 | 2,622 | 47.25 | 0.99 | 0.33 /Normal | 3 | 6,799 | |
| 14 | Oh!-EDO Rocket | 2007/04/04 | 1,255 | 48.78 | 12 | 0.80 /Good | 18 | 13,065 | |
| 15 | Oh My Goddess! | 1993/02/21 | 1,086 | 49.34 | 16 | 2.00 /Very good | 9 | 8,654 | |
| 16 | Oh My Goddess! Original Anime Disc | 2011/02/23 | |||||||
| 17 | OHMYKONBU | 1991/05/04 | 2,036 | 47.53 | 3 | 1.00 /Good | 3 | 8,273 | |
| 18 | Oh! Super Milk-chan | 2000/01/27 | 483 | 54.18 | 50.8 | 1.27 /Good | 47 | 16,563 | |
| 19 | Oishinbo (The Gourmet) | 1988/10/17 | 338 | 57.13 | 72 | 0.80 /Good | 136 | 66,339 | |
| 20 | Ojamajo Doremi | 1999/02/07 | 369 | 56.33 | 66.27 | 0.47 /Normal | 209 | 64,521 | |
| 21 | Ojamajo Doremi Sharp (movie) | 2000/07/08 | 2,022 | 47.53 | 3 | 3.00 /Best | 1 | 4,499 | |
| 22 | Ojamanga Yamada-Kun | 1980/09/28 | 942 | 49.90 | 20.06 | 1.18 /Good | 18 | 17,586 | |
| 23 | Ojarumaru: Yakusoku no Natsu Ojaru to Semira | 2000/07/15 | 3,094 | 46.56 | -4 | -2.00 /Very bad | 2 | 3,697 | |
| 24 | Ojyamajyo Doremi Naisho | 2004/06/26 | 853 | 50.45 | 24 | 2.40 /Very good | 10 | 8,558 | |
| 25 | Ojyarumaru | 1998/10/05 | 3,469 | 43.13 | -28.62 | -0.18 /Normal | 210 | 99,607 | |
| 26 | Okami kakushi | 2010/01/08 | 3,529 | 40.82 | -45.24 | -0.87 /Bad | 61 | 24,554 | |
| 27 | Okamisan and seven companions | 2010/07/01 | 3,385 | 44.73 | -17.15 | -0.35 /Normal | 59 | 23,245 | |
| 28 | OKAWARI BOY Starzan S | 1984/01/07 | 1,434 | 48.36 | 9 | 0.75 /Good | 12 | 11,499 | |
| 29 | Okusama ha joshi kousei | 2005/07/02 | 3,525 | 41.14 | -42.93 | -1.59 /Very bad | 46 | 99,203 | |
| 30 | Okusama ha Mahou-syoujo (Madam is a Magical Girl) | 2005/07/03 | 3,439 | 43.77 | -24.05 | -0.65 /Bad | 65 | 28,115 | |
| 31 | Omae Umasoudana | 2010/10/16 | 2,017 | 47.53 | 3 | 1.50 /Very good | 2 | 3,294 | |
| 32 | Omamori Himari | 2010/01/07 | 3,545 | 39.20 | -56.84 | -0.98 /Bad | 59 | 26,535 | |
| 33 | Omishi Magical Theater Risky Safety (Omishi Mahou Gekijou Risky Safety) | 1999/10/05 | 1,252 | 48.78 | 12 | 1.20 /Good | 11 | 8,796 | |
| 34 | Omohide Poroporo | 1991/07/20 | 3,146 | 46.32 | -5.67 | -0.07 /Normal | 91 | 33,616 | |
| 35 | OMOIKKIRIKAGAKUADVENTURE SONANDA! | 2003 | 1,080 | 49.35 | 16.05 | 1.07 /Good | 15 | 10,110 | |
| 36 | On-chan Yume Power Dai Bouken! | 2003/08/05 | |||||||
| 37 | Onegai My Melody Kirara | 2008/04/06 | 1,325 | 48.64 | 11 | 1.10 /Good | 11 | 7,549 | |
| 38 | Onegai My Melody Kurukuru Shuffle | 2006/04/02 | 589 | 52.69 | 40.08 | 1.67 /Very good | 27 | 21,941 | |
| 39 | Onegai My Melody (Please My Melody) | 2005/04/03 | 469 | 54.34 | 51.92 | 1.18 /Good | 54 | 83,661 | |
| 40 | ONE OUTS | 2008/10/08 | 644 | 52.00 | 35.09 | 1.21 /Good | 32 | 20,372 | |
| 41 | ONE PIECE | 1999/10/20 | 3,524 | 41.25 | -42.16 | -0.08 /Normal | 1,071 | 792,148 | |
| 42 | One Piece 3D Mugiwara Chase | 2011/03/19 | |||||||
| 43 | ONE PIECE -adventure of the nejimaki island- | 2001 | 2,363 | 47.39 | 1.98 | 0.18 /Normal | 11 | 13,330 | |
| 44 | One Piece Film: Strong World | 2009/12/12 | 553 | 53.09 | 42.92 | 1.48 /Good | 31 | 42,380 | |
| 45 | One Piece Gekijyouban | 2000/03/04 | 1,810 | 47.81 | 5 | 1.00 /Good | 5 | 9,575 | |
| 46 | ONE PIECE THE MOVIE | 2004 | 3,264 | 45.86 | -9 | -1.00 /Bad | 9 | 11,143 | |
| 47 | ONE PIECE THE MOVIE Adventure of debt end | 2003/03/01 | 791 | 50.87 | 27.02 | 1.93 /Very good | 14 | 14,307 | |
| 48 | ONE PIECE THE MOVIE chinnjyuutou no chopper oukoku | 2002/03/02 | 2,350 | 47.39 | 2 | 0.40 /Normal | 5 | 4,732 | |
| 49 | One Piece The Movie: Episode of Chopper: Bloom in the Winter, Miracle Sakura | 2008/03/01 | 882 | 50.31 | 22.96 | 1.64 /Very good | 14 | 14,895 | |
| 50 | One piece the movie episord of arabasuta sabakunooujyoto kaizokutachi | 2007/03/03 | 3,473 | 43.08 | -28.99 | -2.23 /Very bad | 13 | 11,151 | |
| 51 | ONE PIECE THE MOVIE Mechanism Hei of Caracri castle | 2006/03 | 3,107 | 46.55 | -4.02 | -0.67 /Bad | 6 | 11,600 | |
| 52 | ONE PIECE THE MOVIE Omatsri baron and secret island | 2005/03/05 | 831 | 50.59 | 25 | 1.25 /Good | 22 | 18,040 | |
| 53 | One Pound Gospel ( Ichi Pound no Fukuin ) | 1987 | 1,318 | 48.64 | 11 | 1.10 /Good | 13 | 14,237 | |
| 54 | ONE -Shining season- (ONE Kagayaku Kisetsu he) | 2001/08 | 3,411 | 44.33 | -20.02 | -1.82 /Very bad | 14 | 17,739 | |
| 55 | One Thousand and One Nights | 1969 | |||||||
| 56 | Ongaku fantasy yume | 1992/04/06 | 2,107 | 47.53 | 3 | 3.00 /Best | 1 | 2,425 | |
| 57 | Onichan no koto nanka zenzen suki ja naindakarane!! | 2011/01/09 | 743 | 51.16 | 29.12 | 0.56 /Good | 56 | 29,384 | |
| 58 | Onigamiden | 2011/04/29 | 2,122 | 47.53 | 3 | 1.50 /Very good | 2 | 4,224 | |
| 59 | Oniisama e | 1991/07/14 | 903 | 50.17 | 22 | 2.75 /Best | 11 | 19,748 | |
| 60 | Onmyo Taisenki | 2004/10/07 | 452 | 54.64 | 54.12 | 1.64 /Very good | 80 | 35,830 | |
| 61 | Ontama! | 2009/08/07 | 2,422 | 47.25 | 1 | 1.00 /Good | 1 | 1,882 | |
| 62 | On Your Mark | 1997/07/25 | 422 | 55.06 | 57.09 | 1.73 /Very good | 37 | 45,291 | |
| 63 | Ooi! Ryoma | 1992/04/07 | 2,356 | 47.39 | 2 | 0.40 /Normal | 5 | 9,593 | |
| 64 | Ookami kodomo no ame to yuki | 2012/07/21 | |||||||
| 65 | Ookiku furikabutte (Big Windup!) | 2007/04/13 | 79 | 74.76 | 198.64 | 1.91 /Very good | 117 | 135,807 | |
| 66 | Ookiku Furikabutte (Big Windup!) - Natsu no Taikai hen - | 2010/04/02 | 342 | 56.99 | 70.95 | 2.15 /Very good | 39 | 16,024 | |
| 67 | Ore no Imouto ga Konnani Kawai Wakeganai | 2010/10/04 | 523 | 53.53 | 46.11 | 0.53 /Good | 100 | 58,731 | |
| 68 | Oretachi ni Tsubasa wa nai | 2011/04/04 | 3,010 | 46.70 | -2.99 | -0.13 /Normal | 27 | 12,517 | |
| 69 | Oruchuban Ebichu | 1999 | 2,197 | 47.39 | 2.01 | 0.67 /Good | 3 | 1,691 | |
| 70 | Oshin | 1984/03/17 | 2,413 | 47.25 | 1 | 1.00 /Good | 1 | 5,674 | |
| 71 | Osomatsu-kun | 1966/02/05 | 547 | 53.22 | 43.87 | 1.07 /Good | 57 | 32,065 | |
| 72 | Osu Karate Bu | 1990/09/28 | 2,499 | 47.25 | 1 | 0.50 /Good | 3 | 11,900 | |
| 73 | Otakuno bideo | 1991 | 943 | 49.90 | 20.06 | 1.18 /Good | 19 | 15,428 | |
| 74 | Otkohaturaiyo Torajirowasurenasou | 1998/08/07 | 2,048 | 47.53 | 3 | 1.50 /Very good | 2 | 4,664 | |
| 75 | Otogi-jushi Akazukin | 2005 | 922 | 50.03 | 21 | 2.10 /Very good | 10 | 13,288 | |
| 76 | Otogi-jushi Akazukin (TV Series) | 2006/07/01 | 572 | 52.84 | 41.14 | 1.21 /Good | 45 | 27,549 | |
| 77 | Otogizoshi | 2004/07/06 | 1,078 | 49.35 | 16.05 | 1.07 /Good | 35 | 23,400 | |
| 78 | OTOKODOAHOUKOUSHIEN | 1970/09/28 | |||||||
| 79 | Otokogi | 1990/04/14 | 2,337 | 47.39 | 2 | 1.00 /Good | 2 | 7,051 | |
| 80 | Otome ha boku ni koi siteru | 2006/10/08 | 305 | 58.12 | 79.1 | 1.13 /Good | 85 | 48,890 | |
| 81 | Otome Youkai Zakuro | 2010/10/05 | 1,125 | 49.20 | 15 | 0.75 /Good | 24 | 12,558 | |
| 82 | Otona Joshi no Anime Time for Women | 2011/01/07 | 2,502 | 47.25 | 1 | 0.20 /Normal | 5 | 8,541 | |
| 83 | Ouran High School Host Club | 2006/04/04 | 100 | 70.30 | 166.65 | 1.65 /Very good | 134 | 137,572 | |
| 84 | Outlanders | 1986/12/16 | 2,927 | 46.84 | -1.98 | -0.33 /Normal | 6 | 16,155 | |
| 85 | Outlaw Star | 1998/01/08 | 201 | 63.27 | 116.07 | 2.19 /Very good | 58 | 37,171 | |
| 86 | OVA Kimi ga Nozomu Eien Next Season | 2007/12/21 | 1,538 | 48.22 | 7.98 | 1.33 /Good | 6 | 3,509 | |
| 87 | OVA Utawareru mono | 2009/06/24 | 3,153 | 46.28 | -6 | -2.00 /Very bad | 3 | 5,940 | |
| 88 | Over Drive | 2007/04/03 | 1,133 | 49.20 | 15 | 1.25 /Good | 15 | 12,636 | |
| 89 | OVERMAN KING-GAINER | 2002/09/07 | 90 | 72.75 | 184.21 | 1.69 /Very good | 143 | 63,457 | |
| 90 | Ox Tales (Geragera Bus Monogatari) | 1987/04/07 | 2,084 | 47.53 | 3 | 1.50 /Very good | 3 | 5,375 | |
| 91 | Oyo Neko Bunyan | 1984/04/03 | 1,267 | 48.78 | 12 | 0.80 /Good | 15 | 20,359 | |
| 92 | Ozanari dungeon | 1993 | 2,189 | 47.39 | 2.01 | 0.67 /Good | 3 | 6,953 | |
| 93 | Ozuma | 2012/03/16 | |||||||
| 94 | OZZY and DRIX | 2002/09/14 | 2,772 | 47.11 | 0 | 0.00 /Normal | 1 | 3,219 |
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