I propose dividing the speedruns into categories based on the 4 countries, since the first 3 levels that must be completed vary depending on the country of the chosen plane, making some require more time in addition to the difference between planes, which makes it unfair to include them all in the same category. Would be divided into 4: United States (Keaton and Keith), Japan (Hi En and Mao Mao), Sweden ( Kohful and Tee-Bee), and United Kingdom (William and River N. White).