The hard and expert tracks almost cause me to throw my Xbox out the window!
Trials HD is a phenomanal, addictive, frustrating (in a good way) little time waster. It will consume you and spit you out the other side cold and shivering, wondering how the hell to better your time by a mere .8 seconds to get the gold medal but you will continually go back to it.
Suggest everyone gets it and competes like madmen to better one another!
Played it earlier and I enjoyed it, considering buying it with my remaining Gamerpoints, although I'm torn between Trials HD, The Maw, 'Splosion Man, Bomberman, a Saints Row 2 add-on or Castlevania: SOTN.