The game was a lot of fun thanks to its ease of play! I liked the idea of coyote time for bombing, and the scenery and bullets are all readable and look nice.
I didn't see much in the way of rafting obstacles, although I found the concept quite interesting otherwise. It's not an absolute necessity, but I wonder if terrain obstacles would add anything...?
Aside from that, I enjoyed the stages & music quite a lot, and the game had a very helpful tutorial as well. Well done!