This game is very simple. You can spam fly training for coins, then between that and the races, spend 3000 coins on skill seed to boost all your other skills up to that level. And yes, that will bring you up to the maximum of 50 energy and 150 of the other skills in a reasonably short time.
Considering that "football" and "soccer" are two different sports... or even that "soccer" came up at all, I suspect this guy is American enough to use "civilization".
I feel like this is the step-headed red-child of loops of zen. When involved in a logic puzzle, downgrading from four possible options to three isn't particularly challenging. Maybe 5 or 6? Those tessellate fairly well.
 "DuckLife"){kind=icon}
 "Lateral - The Word Association Game"){kind=icon}
 "Windows Mista"){kind=icon}
 "Loops Of Zen III"){kind=icon}