That was really cute and enjoyable!
The sprites could be a bit bigger to show damage taken by enemies clearly and such. I liked the addition of bosses. The first one was great at checking out firing mechanics though the second didn't really bring anything new while he could have used the newly unlocked ability, but that's a gamejam entry so it didn't lose any stars from my vote with this and absolutely deserves a high spot in the ranking.
I had a lot of fun, especially since I haven't landed once after unlocking flying. I'm sure you can figure a fun way to use it in platforming or puzzles in future projects!