The art is so cool! Painterly backgrounds mixed with some pixelated effects (and the fully pixel character :v
Riding the wave is pretty funny. You can move as far down as you can without losing, then shoot into the stratosphere. I got to a point where even the music fades out multiple times XD
Based off your inspiration, the game's just missing challenges or obstacles. Riding the wave periodically, rather than just shooting yourself up, is pretty pointless. Gotta have some stuff to dodge :>