Really fun to play, great graphics and sound design. However, it gets old pretty fast, as there's nothing other than "avoid obstacles" and "collect cash". Not worth $.99 at the moment in my opinion. What would make it worth that much in my eyes would be as simple as an upgrade system, even if it's just cosmetics (like different car colors/models, etc.) or even actual boosters (such as speed, maneuverability, weapons, etc.). Currently there's no point to getting the cash other than their points values, imagine having something to spend all those bucks on. It would increase the life of the game as well.