Gameplay was a bit slow and basic. Maybe increase the speed a bit?
Controls could have been a bit more responsive, e.g. making the last pressed key take priority - right now you have to release the other keys before it will change direction.
Graphics were super simple - a simple background could have gone a long way.
I'm also not sure what the things chasing you are supposed to be
The music and sfx were cute thing, though a little repetitive.