You need the entire Flash Player APIs implemented, graphics, audio, video , just translating the bytecode from the swf won't be enough, I think is similar to Ja

You need the entire Flash Player APIs implemented, graphics, audio, video , just translating the bytecode from the swf won't be enough, I think is similar to Java , it is useless if you can compile or run Java code if you do not have the entire base/core libraries converted and the ability to load any third party libraries.