Missiles which spray out black tar to blind its target, used against the large robot that transformed from Megakat Bridge in a dark future ruled by the Metallikats. There is also a Glovatrix variant the SWAT Kats used against Mutilor’s guards.
When talking about fan works, then fan art and fan fiction are probably the first terms that come into most people’s mind. But there are a lot of other possibilities for fans to express their affinity to the show, like fan comics, cosplay, anime music videos (AMV) and video reviews. Among those possibilities there is one in particular that can be missed quite easily which is fan music.
One of the SWAT Kats most dangerous and elusive foes, Dr. Viper uses his demented intellect to create and command biochemical monsters and mutations to further his goal of transforming Megakat City into a swamp.