If you manage to find a working copy of Flash CS6 Portable, you will likely find that the animation tools still work perfectly. The drawing tools, the timeline, and the classic tweening features are timeless.
However, the Flash Player aspect is dead. adobe flash cs6 portable new
Official Adobe installers write necessary registry keys and dependencies to your system. Portable versions try to bypass this. As a result, you may experience frequent crashes, features that don't work (like importing sound), or an inability to save projects properly. If you manage to find a working copy
The only safe way to get Flash CS6 is through a legitimate Adobe CS6 Master Collection license (discontinued, but some second-hand licenses exist). Install it normally (not portable) on an old, offline computer or virtual machine. you may experience frequent crashes