Trials 2 is an amazing racing "platformer" that puts you (a dirt bike rider) through different stunts, obstacle courses and trials. The obstacle courses in particular have strong platforming elements such as precise movement and timed jumps. The game offers ranking and profiles on their leader boards. It is available for direct download, or through Steam, for $9.99. Probably be tbest $10 I've spent in a long time. Do yourself a favor and grab the demo from - http://www.redlynxtrials.com