Action Script Viewer Twitter
First Flash/SWF decompiler, for Windows only, released in 2000, still improved daily, released monthly. Not the cheap option at 149 USD per license but people come to us eventually when all others fail them. Sorry no demo or trial (or docs), also does not run in a VM and requires activation on hardware. Has FLA conversion option via Flash MX 2004 - Flash CS6 JSAPI feature only. Supports deompiling AS1, AS2, AS3 and probably any obfuscation you can throw at it.