Fun for the first couple thousand feet (or meters - didn't see units). After that, it gets a bit repetitive and becomes a game of endurance - one that I failed, as I willfully face-planted into mallards to escape the never-ending fall.
Having different obstacles to dodge other than the occasional duck could help.
Perhaps an airplane could fly in from the side, and you'd have to dodge vertically (as well as horizontally if there's an incoming hazard from below).