Great, and lots of fun, but...
The game needs to gradually get harder, or if it is it needs to do so faster, because I'm spending too long not feeling like I'm being challenged.
The countdown bars at the bottom need coloration according to what powerup they correspond to AND they need to be smaller so you can fit four, one for each powerup.
Also, it seems that no matter how many lives I've got, if I exit the playing field (to the left or right of the spinning corridor), the game ends and I have the option to restart. Ig that was intentional I suggest just having the ball lose a life and make it bounce back out or something.
Those are just some things I noticed and thought you might want to be brought to. All in all, great game, very fun design. As for originality I wouldn't go as far as to say there's nothing like it but it looks like you've developed a good hybrid of FallDown and Gradius-Type motion games.