Hi.
It's cool that my "game" is being commented in this forum since I only published some WIP's on Vimeo.
My original idea was to do a full 3D biketrial game but, since I'm not a programer I decided to try a 2.5D version that is simpler to implement.
In fact that's true, I liked his game and I'm trying to do my 3D version of it.
As you said it's slow and needs lots of improvments but, as I said, it's a WIP(work in progress) so it's being done when I have some time.
I want it to be pretty good so it will take a while to finish it.
I have a blog where i'm posting the news. The problem is that it's in portuguese (i thought and i'll make a English version of it).
http://biketrial3dgame.wordpress.com
Well, thank's for the post and if you want to see de progress visit my blog.