The last game that you could freestyle BMX on was dave mirra's bmx challenge (2006 on a psp)(GTA V doesn't count, it's an open world sandbox first and foremost) and even then, it was lacking tricks from most disciplines (no flatland, trails, etc.) and a lot of tricks that should have been in the game in the first place.
There a new skateboarding game that comes out just about every year, the last dedicated serious game was mat hoffman pro bmx 2, and the last game that was serious about it was tony hawk american wasteland (bought the game literally just for the bmx. How come skateboarding gets all the games while bmx doesn't get any attention?
>inb4 they are already making a game called bmx the game