General Questions

Your Learning Curve can be compared with your friends by seeing your scores in your first 10 and first 100 procedures on the game center leaderboard

Effortful Labor. If it takes 10 years to master any field (Simon as quoted by Ross). Then peforming multiple operations with appropriate feedback on the app should up your game without spending nights and weekends in the Operating Room.
Ross, P. E. (2006). The expert mind. Sci Am, 295(2), 64-71.

Challenge. Perform a successful operation through a minimal incision, and you can challenge your friends in the game center. There are multiple other achievements (which are hidden but hints are in other parts of this section)

Aligning the parts of the fracture anatomically, will get you a higher score. But each time you adjust the traction away from the correct direction will decrease your score. Think before you shift the traction. Different planes on the traction is more evident on either the 'AP' or 'Lat' view on the X-ray. In the Real world a Poor reduction = More chance of failure of fixation.
A smaller incision will get higher points. Multiple changes of the incision length cuts down your score.
Smaller incision = Less chance of infection.
Can you do the operation without making an incision?

Drilling the guidewire into the hip joint is poor practice, as it will affect the joint cartilage, Your score will suffer.

While the guidewire is only millimeters thick, repeated repositionings and re-angulation will weaken the bone, especially osteoporotic bones. Consequently your score will weaken too.

The 'Dog-Leg'  is a measure of the ability to identify the projected trajectory of a guide-wire and make the appropriate correction. Mistakenly placed wires in all directions will raise the 'Dog-Leg' and subsequently lower your score.

The ideally placed screw is 5mm short of the articular surface, in line with the femoral neck and passing through the midpoint of the round femoral head. Can you hit the 'sweetspot'.

A screw which is superior, anterior and long is significantly worse than the opposite (inferior, posterior or short). Screws which cut-out and enter the hip hoint go in the superior, anterior direction.

The Tip Apex Distance has been correlated with the tendency for failure of the procedure. The ideal is less than 25mm.
Baumgaertner, M. R., Curtin, S. L., Lindskog, D. M., & Keggi, J. M. (1995). The value of the tipapex distance in predicting failure of fixation of peritrochanteric fractures of the hip. J Bone Joint Surg Am, 77(7), 1058-1064.

Other Questions

The ideal plate should sit flush on the bone. You will notice the app automatically pushed the guide-plate out till it sits flush. If the plate is not sitting on the bone, screws placed can cause loss of position of the fracture, or the lag screws to cut out.

After several operations you will hopefully notice how changing your entry position affects the angle of the screw as the screw/plate angle is 135 degrees

The ideal lag screws should pass through the far cortex by a couple of millimetres (bicortical fixation).

They should exit at 0 degrees to the bone (orthogonal).

Taking more X-rays exposes the patient (and the surgical team) to more radiation. But screw position is more important than an extra X-ray.

Swapping between 'AP' and 'Lat' views generally takes around 30 seconds, which will affect your time-score (also possibly contributes to increased infection risk.

Long operation times are associated with getting cold, increased blood loss, increased infection risk, increased anesthetic.

A faster operation, (but done well) is better than a slower operation, so you will get more points.