finally, was able to complete the correct sequence for the RPG version. here is how it would look like, after all levels are maxed out:
some things to expect in the game (for those who can't go as far as maxing out all levels in the process):
* the tree is a bomb-bearing fruit tree. you will need a boat to get across it, and fetch the bomb-fruit. the bomb-fruit is used to clear the boulder blocking the stairway to the chest atop the mountain.
* there is a house hidden among the clump of trees. you can secure a sword here.

* the tower conceals an armor at the top-most floor.
* in the final battle, you fight it out with the evil demon (the one you see on top of the sphere in the start of the game).