Horse Jumping Show 3D is a great pony testing system that you can play online and for nothing. Choose your character, jump on your pony and start riding through test courses, trying to flawlessly jump over all the obstacles to clear each stage with three stars.
Set your pony's speed and get the right second to proceed, hopefully passable and bring in enough money to buy another pony and move on until you set the highest score possible. Play around with a 3D horse jumping game!