Shi no Meikyuu : Labyrinth of Death

Dragonia, the castle of doom, has come upon the world and its minions have stolen the Holy Goblet. Without it, the world will be in darkness forever. You play as Trykaar, who must enter the castle and traverse its thirty levels to retrieve the Holy Goblet. There is no other storyline; its dungeons are generated randomly each time you play, like the Rogue-type games which originated on the PC.