This is one of the good offline pastime games that I look for. BUT I think,The boosts don't last long enough. about 2 more seconds should do wonders. & The spacing of the linear coins after a ramp, backflip-conducive spot's I try to use for rock hops seems vaguely askew, and I feel like there should be a better choice for cancelling a grind for a power-up or something like that. And if you can pull it off while flying. you should be able to smash through rocks.