Simple 2500 Series Portable Vol. 4 – The Unou Drill
Simple DS Series Vol. 10 – The Doko Demo Kanji Quiz
Simple DS Series Vol. 26 – The Quiz 30000-Mon (Navarac)
Simple DS Series Vol. 6 – The Party Game
Simple 2500 Series Portable Vol. 7 – The Doko Demo Kanji Quiz 2006
Simple DS Series Vol. 32 – The Zombie Crisis (6rz)