We’re glad you like it! We had fun making it. And personally I love how the tunnels turned out. BTW, you can switch directions mid-tunnel. If we had time to put in more tutorial, that would have been made clear. Anyway, just move in the opposite direction of travel (with joystick or keys).
It’s an interesting idea to fade out the music a bit when enemies are near. We’ll add it to our list of things to consider. Someone else mentioned the need for a mini-map, which is something we’ll also consider but may put some sort of twist to it. We’ll see.
Thanks for the feedback!