Adian no Tsue

A SunSoft Famicom Disk System top-down action-adventure game that also teaches arithmetic. Adian no Tsue ("Staff of Adian") is an educational action-adventure game that strongly resembles The Legend of Zelda, or at least its dungeon areas. However, a major difference is that in order to collect the game's chief currency - bells - the player must solve basic arithmetic puzzles. Each room of the game contains monsters the first time the player enters. After defeating them, the player can select any of the nearby doors to enter: Some lead to different areas, but others will simply reveal a bell...