| Maru Goukaku - Shikaku Dasshu! 2011-Nendohan Gyousei Shoshi Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! 2011-Nendohan Jouhou Security Specialist Shiken - Network Specialist Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! 2011-Nendohan Takken Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Chuushoukigyou Shindanshi Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Gyousei Shoshi Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Hanbaishi Kentei Shiken 2-kyuu, 3-kyuu | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Shakai Fukushishi Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Sharoushi Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Shouken Gaimuin Ni-Shu Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Special IT Passport Shiken, Kihon Jouhou Gijutsusha Shiken, Ouyou Jouhou Gijutsusha Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Special Shakai Fukushishi Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Special Sharoushi Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Special Takken Shiken | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! TAC Koumuin Shiken - Kokka II Tane | Nintendo DS |
JP | 2004-01 | published, developed |
| Nanami no Oshiete English DS - Mezase TOEIC Master | Nintendo DS |
JP | 2004-01 | published, developed |
| Sonshi no Heihou DS | Nintendo DS |
JP | 2004-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! IT Passport Shiken, Kihon Jouhou Gijutsusha Shiken, Ouyou Jouhou Gijutsusha Shiken | Nintendo DS |
JP | 2010-01 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Financial Planning Ginou Kentei Shiken 2-kyuu, 3-kyuu | Nintendo DS |
JP | 2010-06 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Care Manager Shiken | Nintendo DS |
JP | 2010-10 | published, developed |
| Maru Goukaku - Shikaku Dasshu! 2011-Nendohan Financial Planning Ginou Kentei Shiken 2-Kyuu, 3-Kyuu | Nintendo DS |
JP | 2011-01 | published, developed |
| Shin Maru Goukaku - Shikaku Dasshu! IT Passport Shiken, Kihon Jouhou Gijutsusha Shiken, Ouyou Jouhou Gijutsusha Shiken | Nintendo DS |
JP | 2011-02 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Kaigo Fukushishi Shiken | Nintendo DS |
JP | 2011-08 | published, developed |
| Maru Goukaku - Shikaku Dasshu! IT Passport Shiken Portable | PlayStation Portable |
JP | 2011-09-01 | published, developed |
| Maru Goukaku Shikaku Dasshu! Kihon Jouhou Gijutsusha Shiken Portable | PlayStation Portable |
JP | 2011-09-08 | published, developed |
| Maru Goukaku Shikaku Dasshu! Ouyou Jouhou Gijutsusha Shiken Portable | PlayStation Portable |
JP | 2011-09-08 | published, developed |
| Maru Goukaku - Shikaku Dasshu! FP Financial Planning Ginou Kentei Shiken 2-Kyuu Portable | PlayStation Portable |
JP | 2011-11-23 | published, developed |
| Maru Goukaku Shikaku Dasshu! FP Financial Planning Ginou Kentei Shiken 3-kyuu Portable | PlayStation Portable |
JP | 2011-11-23 | published, developed |
| Maru Goukaku Shikaku Dasshu! Sharoushi Shiken Portable | PlayStation Portable |
JP | 2011-12-22 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Chuushoukigyou Shindanshi Shiken 1 Portable | PlayStation Portable |
JP | 2012-01-26 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Chuushoukigyou Shindanshi Shiken 2 Portable | PlayStation Portable |
JP | 2012-01-26 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Takken Shiken Portable | PlayStation Portable |
JP | 2012-02-23 | published, developed |
| Maru Goukaku - Shikaku Dasshu! TOEIC Test Portable | PlayStation Portable |
JP | 2012-03-22 | published, developed |
| TOEIC Test - Jissen Tokkun 2 | PlayStation Vita |
JP | 2012-04-25 | published, developed |
| Maru Goukaku Shikaku Dasshu! Care Manager Shiken Portable | PlayStation Portable |
JP | 2012-05-31 | published, developed |
| Maru Goukaku Shikaku Dasshu! Shouken Gaimuin Shiken Portable | PlayStation Portable |
JP | 2012-05-17 | published, developed |
| NextRev - IT Passport Shiken | PlayStation Vita |
JP | 2012-06-28 | published, developed |
| Maru Goukaku - Shikaku Dasshu! Special Kaigo Fukushishi Shiken | Nintendo DS |
JP | 2012-09 | published, developed |
| NextRev - Hisho Kentei Shiken | PlayStation Vita |
JP | 2013-05-30 | published, developed |
| NextRev - Care Manager Shiken | PlayStation Vita |
JP | 2013-06-27 | published, developed |
| Learn with Nanami! Listening and Reading Test Complete Master | Nintendo Switch |
? | 2017-12 | published, developed |