I think you were too harsh on yourself and massively undersold this game in the description.
Because this game was really fun! The pacing was good and the difficulty increase was great. I love how the dash mechanic worked, and served more than one purpose than just movement. And how you balanced out both shooting and dashing abilities. Well done!
You should probably cut yourself some slack, because it's just a game jam, this is plenty for 48 hours.