The controls are quite hard to control on keyboard... It's mostly on the left side and it's a pain to get used to. Too bad, too, because this game looks really cute!! Here they are because they aren't listed for some reason:
Z = Jump
X = run
^ = look at signs
WASD = walking, climbing up and down
My suggestion for improvements: Shift = run, Space = jump, Z = look at signs, WASD is the same