LOVED the voice acting! Also, it was not a single phrase read and repeated by the NPC, there were more lines! It shows the love you guys put in the game :D
About the combat: it would be nice to see the attacks' range, sometimes when attacking enemies my sword sprite would sweep through them but I didn't hit them. It could also help to indicate when the enemies were going to attack, specially the ones that uses a fireball!
The upgrades were a little too expensive...? I needed a lot of runs to buy my first upgrade.
But overall this game has a lot of potential! Specially the sense of humor! Great work in this game.