I agree with the audio. It desperately needs a backing track and audio/particle feedback. I ran out of time for the audio. The good news is that I spend most of my times on the characters. It's my first time doing pixel art and the fact it brought a smile to you is awesome.
As for the ladder/stairs, I'm not sure why you can get caught at the bottom of the ladder. It will be with time to investigate.
Thanks for playing!