Good catchy music, the controls feel good and its snappy and responsive to move around.
I did have some issues navigating around the inventory screen. Using my arrow keys the cursor never seemed to go where I want it, and I don't think I was able to pick up any loot. I think I closed the chests without looting anything which made them disappear? Not sure.
I also ran into a bug in the cave just inside the southern road on the left. I walked next to the slime, the "COMBAT" banner went up and then I was soft-locked. No controls did anything. On a reload and second play I was able to fight things perfectly well in the other caves.