2 things I want to mention:
1. In one of the starting houses, there are 3 floors.
At the underground one, the wall tiles can be walked on whih probably was not planned.
2. Not sure if it was planned that way but at the second healing crystal in the forest, there's a person standing next to it.
Talking to it gives no dialog but just teleports you back to the middle of town.
Making you walk and fight all the way back! :O
On the first point the house will be part of the quest after the first boss. It will be heavily worked on once Serene Forest is done. The next update adds a fully playable dungeon with a boss battle.
On the second point yeah, that was kind of a dev exit until we finished Serene Forest. The whole forest has doubled in size. More detail and landscape has been added. It is out of the new update which should be processed in a couple hours. Once it is out the forest will be vastly expanded and a lot of stuff will be added included the fix to those two things.