You did a really good job replicating the sprites and ui! The biggest critique I have is the fact that the turning is extremely sensitive, it's so fast that it feels more like the bikers are sliding across the screen than actually moving across it. Additionally, the hitboxes feel a little bit too big to me, there were a couple instances where it'd look like I passed by a tree and it'd take a life anyways. Overall though, it's a really well done clone!