Deep Dungeon: Madou Senki/Floor 8

Key Points

 * 1) Pull the handle on the wall located at (7, 3) to open the door at (6, 0).
 * 2) You can collect a Short Sword located at (3, 8).
 * 3) If you step on the location at (3, 27), you will activate a teleporter that will send you to (24, 19).
 * 4) At (26, 21), you will encounter the final boss of the game, Emperor Ruu.