Have a try at my version of Project Boost. I’ve intentionally kept things kind of simple so that my target test subject (my father) would have fun playing it. For some reason the lighting is buggy in WebGL, oh well 
Here’s a short clip:
And you can give it a try here:
http://www.sharemygame.com/share/dcff170d-91f2-4ac1-b9cf-57f5e643bf62
CONTROLS
Space Bar : Boost / thrust
A : Rotate left
D: Rotate right
There are 10 levels that should get progressively harder. Does the difficulty ramp up feel natural? Thanks!