It's actually really fun and playable!! I got a sense of improvement that most of entries lack... Really nice!

Try my entry "A Logical Dive" if you have time :)

Very nice entry!

The trickiest was to figure out the depth and to know to move when it really matters.

Thanks for the comments and the rates, fellas.  @David,  thanks for the suggestion. I've discussed this issue a few times and decided it'll be corrected by giving the camera a slight tilt and pan based on the player position and creating a forward facing projected texture that extend a section or two ahead.  Again, thank you guys for playing my game.

Cool concept and pretty fun! I'd say for future improvements to somehow show the player where the dot is in relation to the rings (the depth of it was a little tricky to discern).

Finally a game that doesn't kill me off in the first few seconds.  The triangular obstacles have a nice look.