Few fun stuff I noticed on myself: After a while I got slight motionsickness from turning around and around. :) Also there was a special kind of additional frustration to lose: because the music was so good I wanted to listen it more. My highscore is 41 or 42 so I usually died before the drop which was really cruel. Also what is happening at 40? Everything starts shaking, which is cool, but does it effect the ships position too? It seemed like I couldn't do the same gate twice in a row although I stayed in the same angle, but I'm not sure, I only got there like 3 times.
Overall: really fun game, great music, liked the visuals as well, my favourite so far.
Went back to play some more, and noticed I can change difficulty. I expected the speed to be lower but instead you found better way to make an easy mode, the player can see further, nice. It helped a lot. I couldn't figure out what's the difference between medium and hard tho. Also I found yet an other feature in your game: the light ond the next gate is visible even in hard. At first it wasn't easy but after a run I could predict the next gate solely by the light, it felt great. This way I could beat my highscore: now it's 67. :) I'm still not sure if the shaking does any effect on the ship or not, it feels like it's not just visual disturbance.