The game has a handful of bugs, some of which break the game and force you to restart the app. Besides that, it's a good time waster. EDIT: After playing for a few days, the amount of bugs that require you to close and reopen the game have grown far too much. I'll just randomly get a pop-up asking if I want to watch an ad for a boost. However nothing in the pop up works, so you just need to randomly close the game if you want to continue.

Honestly a great game worthy of 5 stars, BUT the developer is so money hungry, he places constant ads after EVERY "challenge" and expects the people who don't want to see ads to spend $10 a month. That is absurd for a mobile game. I understand ads on a free game, but space them out atleast, I feel like 60% of my time is ads. Also, the challenges are too easy, I am going extremely under leveled, and still beating them. You can't even play this game offline either, so no airplane fun.

It's a fairly decent game, but the ads are just stupid. Here's a tip for future development: If you're offering a bonus boost in exchange for watching an ad video, don't make the player watch a damn ad anyway if they deny the boost. Every time I deny the extra boost in rewards because I just want to get to the next race, an ad has to play. Like, if you're going to make us watch the ad no matter what, then don't bother with the option, just get rid of the reward boost for ad watching.