All 5 stars except for gameplay, 4 stars, the collection of oxygen mixed with the movement of the game can be annoying and cause me to bump into stuff which isnt fun.
Other than that, 5 stars everything else, love the style and art, the sounds, the up and down movement for dodging obstacles.
Collecting 02 from the bubbles is good, it allows me not to have to get rid of all my momentum to surface.
RIP the old color pallete, if you know you know!