Simple 2500 Series Portable Vol. 12 – The Hohei 2 – Senyuu Yo, Sakini Yuke
Simple 2500 Series Portable Vol. 9 – The My Taxi
Simple 2500 Series Portable Vol. 5 – The Block Kuzushi Quest – Dragon Kingdom
Simple 2500 Series Portable Vol. 3 – The Dokodemo Suiri
Simple 2500 Series Portable Vol. 4 – The Unou Drill
Simple 2500 Series Portable Vol. 7 – The Doko Demo Kanji Quiz 2006