FTG Writes: Balloon 27′s iOS title Hill Bill has been described being like the Tony Hawk series. That may be so, but Trials HD is probably a more apt comparison. Saying this is like Tony Hawk implies a score that matters, a variety of set pieces, and a desire to better yourself with each run. Trials HD is a better comparison, as score is not only unimportant to completing Hill Bill, but also undefined. And I felt no desire to perform a better run each time.