I really like the idea of a different game mode that works kind of like a "continue" in an arcade game, and the maze is simple but challenging, so works well for that.
It took me a while to get the hang of it (I thought there were two courses, rather than two edges of one course), but once I did it was really fun.
It might be good to ramp up the number of obstacles over time. The sheer number of trees and rabbits is a little overwhelming at first.
Overall, a great game.