Nice little game. Graphics are cute. I don't know why, but I'm a big fan of pixelart games.
Audio during the game is nice. However, my ears almost exploded when the game was over because there were too many sounds which were way too loud. I think missing all the houses got triggered or something. Please fix.
The pathfinding algorithm should also be improved, because the nodes that are chosen are a little weird. Not sure if looked up any algorithms for that but A* (A-star) pathfinding is very neat solution and easy to implement that should give you the shortest path on a grid based system.
I would also very much welcome a way to extend the path. Right now I always have to wait for the truck to reach the destination before planning out a new path. It would be really cool, if I could start dragging from the endpoint of the current path to plan out the next path to take. This would greatly improve the gameplay loop.