This is a great clone Gen! It definitely feels faithful in its art to the original clone, and I really like the way the ai moves similarly to the game, especially the helicopter. Although, I would have to agree with other comments about the speed of the player feeling too slow. And while having the player be a little slower could be fine on it's own, the steering feels very fast in contrast to the speed of the bike making it feel a bit jarring to control.
Overall though, I thought it was a solid clone and had a lot of fun playing it!