I give it 5 stars but there needs to be more update cuz in ios there's now rainbow bike and moon bike All android bike race players are complaining that there is no good update for bikes the duel mode is completely changed in ios its been 2-3 years since rainbow bike came out and android is getting "bug fixes" since there are none. So please update the game for Android add rainbow bike and moon bike update the duels mode and make more better speed maps like Arctic 3,Holiday 3,and Thanksgiving 2