That was a lot of fun! The game is paced really well with the ending set at right about the point where the loop may start to become repetitive. Level design felt good with a variety of little paths and stages to explore.
I think that the character speed in town should be at a higher setting to avoid scaring people out of playing before they discover the shoes upgrade. My other point of criticism is the candy pickup sound which can be a little grating. Potions can make use of the RPG Maker inventory system, but I suppose that the current set up works too.
Only two bugs I've found was the the bus timer occasionally freezing and the strength potion giving me a lot more capacity than usual.
Great game! Good concept and polished execution.