This game looks so good! Has this super cool hand drawn art and you nailed with the surf songs. The mechanic seems unfinished but it has so much potential! I really like what you were able to make with the time you had (since, as I understand, you joined the jam a little late..) The music fading out as the player gets higher is a cool touch. I would just enable controlling with W ans S for up and down, I think a lot of PC players are very used to it. Finally, some splash sounds would do a lot for the game. Congrats!