Got VVVVV vibes. I like that I understood the mechanics completely by around level 2 but I still had moments of being surprised when I realized "oh I need to go back for air first".
Very clever mechanics. Good call on clarifying that I can moon jump in air since it was pretty important later on.
Great game dude and I like that you introduced mechanics in slowly. You very much have a the skills for level design and it shows.