Mouse click to climb (add thrust), release the mouse to free fall.
Simply reach the end of the tunnel / course. You die and restart the game if you crash into anything. If you run out of 'ring power' you won't be able to remain in the air, so try to collect 'rings' as you go. Fans of games such as 'fly copter' or 'Jetman' should appreciate this ... lol I hope.
THINGS TO NOTE
I plan to add sound and 'polish' this up quite a bit ... just wanted to throw this out there to see what people think / or if anyone has any handy tips on stuff I should add / change etc etc etc
Also seems to run better on IE for some reason ... I also forgot to add a pre-loader ... but its a small file so ...
Edit: Thanks for all the feed back guys, some good stuff has been pointed out to me, much appreciated. I shall continue to work on this so look out for the finished game in a week or so ... thanks again!