This level is quite simple as the path is laid out in a way where it is easy to figure out how to beat the level. All it takes is to jump or walk from wall to wall (whenever there is one); you'll meet the goal at the end.
Take the left wall 3 times, take the far right wall at the end, jump to get the bonus. This isn't hard, all you need to do is go against your instincts as this platform is further away than the one on the left.
However, you can also obtain it by taking one very short jump when playing it normally. Doing this is not recommended.