- summary -
Intended loop
castle, town, explore world, dungeon-town, dungeon, dungeon-town, shop, castle

Add an easy way to warp back to Yipe shop from near any dungeon town.

Leaving a dungeon requires the player to pass fully through the nearby dungeon-town before they can access the warp back to Yipe shop.

Buying a new ability in the shop should enable a new path back to the castle.
But it should not be obvious that it leads to the castle.

The player should discover something very interesting each time they emerge back in the castle.

The player must pass the queen in order to leave. It should be obvious that she has something new to say.

Leaving Yipe castle should require passing through the main town to get clues about the current task. This could be similar to the dungeon and dungeon-town funnel.

ability-based barriers to leave yipe beyond the 1st dungeon.
 jump rivers
 cracked mountains
 laser burns trees  (ALL trees)
 (no need to require magic key, because you need claw to unlock it)
 (scanner is the casino prize instead of an ability)