General progression
In order to complete Youkai Yashiki, you must defeat the bosses of five stages in order. There are no stage warps, so you must complete each and every stage. In order to reach the boss, you must first locate and collect the five talisman scattered around each stage. Some will be placed in easy to find locations, while others will be hidden away in rooms which can only be accessed by special means such as in-stage well warps or invisible ladders. Once all five talisman have been collected, a special location in the stage will teleport you to the boss' lair. This location may be somewhere that you have previously visited, or it can even be a location that would otherwise kill you if you did not possess all of the talismans. In three stages, there are bonus sections that can be accessed by walking into the correct secret locations. These sections contain powerful bonus items that augment your offensive or defensive power. Be sure to find them.