There's a simplicity to Urban Trial Freestyle that does a good job, at least initially, of burying the complexity required to truly master the game.
Manoeuvring the rider through a nightmare motocross obstacle course, the controls amount to accelerate, brake, lean forward, and lean backward. The simple combination of those four control directions with the occasionally bizarre interactive and changing "course" creates an environment whereby the player must exhibit some skill and sometimes just get a lucky break to make it through the course or match challenge markers (like longest distance). It doesn't hurt to upgrade the bike either.
