First off, I absolutely love the art in this game! The hand-drawn style is so nice, and it's actually all very cohesive, dare I even say it, good!
I agree with everyone below who said the UI could be a lot faster, the pace did seem a bit off sometimes, but the core gameplay is really good! I could see this being expanded with even crazier obstacles and larger maps. I think making the obstacle soundwave colours closer to the player soundwave colours might add a bit of extra difficulty, as currently it's quite easy to locate everyone. (even if the time limit can sometimes make it quite tight!
I had a lot of fun with this though and it's a great finished product! Well done!