Random bug I found-- if you dash left and turn right so that your character clips off the screen slightly, you I guess take out of bounds damage and then respawn? (You can also do the same thing to the right of the boss fight, which makes your speed very low, permanently)
Besides that though, this game was very cute, I really enjoyed it! The platforming was very satisfying, the art was cute, there was extra polish in the parallax background movement, and it overall felt very well put-together! Well done, this was a great submission!