CD-Denjin is an excellent and fun title. Interestingly, the first episode was somewhat technically better and featured an incredibly fast and smooth parallax scrolling. This version compensates for this unfortunate loss by pumping more detail and variation into the levels than before - and the overall quality is still flawless.
The game is every bit as nutty as the title. It features CD-quality sound and a high degree of action, but it's a bit too easy for most gamers.
Video Games & Computer Entertainment
Zonk is cool, but Air Zonk is just too darn easy for a CD shooter. A little more time should have been spent developing the game - make the stages longer, tweak the difficulty level...anything to make it more memorable.
Electronic Gaming Monthly (EGM)
With the reputation the Duo has for great shooters, Super Air Zonk has come across as a great disappointment.