I can't rate for some reason that I probably yet to understand but when I can I will come and rate. I would suggest you make jump and dash two different buttons as in this case my computer, keyboard or your game could tell the difference between a key stroke and a key hold. You can either increase the necessary hold time or, easier option is just assign a different key. I would have been okay with space/shift or even LMB/RMB. Otherwise the art and music and even environemnt were pretty cute... oh the slime as well!
Good game keep up the work!