Quote Originally Posted by celerystalker View Post
Well, the original isn't a twin stick shooter, but rather uses rotary joysticks that move like regular 8-way sticks, but twist at the top to click into different firing positions, allowing you to walk and shoot in different directions. As far as being the definitive version, it definitely has better graphics, and the control can't be replicated, but the NES version is still pretty highly regarded and is longer. It really is the successor to the Ikari line, which also used those rotary sticks, as did a nice handful of other games.
Interesting! Never seen that setup before and had to look up a pic.