Nice game concept!

I think you need to polish a little bit more:

• Improve game difficulty ramp up. I would stand practically in the same place for several seconds without getting hit.
• Improve UI
• Maybe add more variety (different types of asteroids for example).

Good job,

This was pretty fun, but I do think there is room for improvement, the suggestion to include a timer or a visual display of the players score is a great idea.

A minor issue which I think is more subjective is that I thought it was kinda odd-looking was how the "trail" would lerp back to its position after the player stops moving. When the trail is fairly long it looks fine, basically snaps back to the players position as soon as they stop moving. But when the trail is short, it kinda stops for a half second and then starts moving back to position. It might look better if the trail starts moving back to position right away no matter the length IMO.

But overall I still thought it was enjoyable, oh and I did try standing still like Banya mentioned but that strat didn't work for me. On the first try I died in one second lol.

Good work!

Yay, I lasted 160 seconds! 
As for the audio I think it's fine as it is, but I have some suggestions for the gameplay. In the state that it is you can last endlessly by just standing in a point and not moving, like I  did... so:
- add a collectible, like coins. Because it will distract players and make them go out of the safe zone and crash into meteors
- add some kind of power up like a 5 seconds invulnerability
- increase difficulty every 60 seconds of survival
- show the player's score in a corner