Cool idea, palette and music. Graphics also start to feel more cute when the camera is rotating.
Took me forever to figure out how to use ladders. Watched the pictures on the itch page, pressed 1, to no avail. Then realized the guy can also climb without ladders. Then in level 2 realized I need to buy ladders (that's totally what I do while hiking and stuff). xD
Took another forever to figure out that I can't pick up a ladder from above. %)
Wish I could return to previous levels to collect scales. Also the game might need some revision of the numbers part (or visualizing the numbers except the total hero stamina in non-text form somehow), so it becomes more intuitive.
Climbed every mountain, 4/11 scales.
I wish you good luck if you are going to develop the game further after the jam!