Nazotte Oboeru Otona no Kanji Renshuu

Nazotte Oboeru Otona no Kanji Renshuu (なぞっておぼえる 大人の漢字練習 "Trace and Remember - Kanji Practice for Adults") is a puzzle video game, developed by Now Production for Nintendo DS. As the name implies, the game improves the Kanji knowledge of the player, mostly by handwriting the kanji via the touch screen. The game received two updated versions later: Kanzen-ban (Complete Version) and Kaitei-ban (Revised Version).

Each game has a mode called Kanji Guchi Jikku (漢字口ジック) which the player solves nonograms of some kanji. The original version has 50 puzzles, while the updated versions have 100.