Hey, I played your game!

It's a solid game with basic mechanics, and is fun for a while. However, eventually I found it quite boring... I was just going through hoop after hoop endlessly. 

What this game needs are unique mechanics and obstacles, to give the player a sense of achievement when they go through a hoop. Put some enemies there to stop you, put some birds in the way, add turbulence, bad/good weather... or something to make it more engaging. Even something as small as moving the hoops around for a harder target.

Maybe the plane can go faster or slower due to an upgrade or obstacle? Maybe it can have a gun to fire at these obstacles? Nosedives, tailspins, barrel rolls... everything planes can do, experiment with it and put it in!  

I have found that I can move the mouse around very quickly, and go back through the hoop I just went through. I can do this repeatedly to continually increase my score. (But then it increases the risk of forgetting which ring to go through and losing, so I guess you can keep that bug in if you want)

Feature Ideas:

- Fly through a city, or have some sort of 3D objects that you are flying around. Needs more scenery

- I would like some particle effects for the jet stream, and the trails on the wings, something to feel like I am flying a plane. To add to this, the mouse should not simply rotate the plane like an FPS game, it should set the 'wanted rotation' instantly, and then plane should rotate towards that wanted rotation at some linear rate. This will make it feel more like you are controlling a plane. To add to the 'physics', you should also make flying downwards faster than flying upwards, due to gravity. (just examples, you can add more)

Simply by making the plane feel more plane-like and adding more scenery, this simple game can become very good. But after a while, simply flying through the hoops becomes boring. Could add some type of progression, or some end goal/win state. I am not sure what that will look like though, it is up to you really