Bad controlls. Left handed control scheme=evil
A good control scheme is one that can be changed, or is more common to what your typical gamer would use because that gamer already uses it in most other games on their computer. Left handed controls are usually a bad idea because most people who already play computer games will be used to using the left hand to move the guy and not make actions. It's also bad to have jump on the same hand that does the moving, it just is not natural and should be a button on the opposite hand. One hand does actions, other does movements. Jump is an action.
Music is alright, but it doesn't loop properly.
Graphics are also nice.. Just please fix the controls.