The problem is not that the Flash game is so tightly coupled to the hardware, it's that it is tightly coupled to the Flash runtime. (Mainly because Flash forces

The problem is not that the Flash game is so tightly coupled to the hardware, it's that it is tightly coupled to the Flash runtime. (Mainly because Flash forces a certain structure on your code, but also because Flash's idiosyncracies are so bad that you have to bend over backwards to get good performance from it.)