RNAliens are mutated drones made of mixed DNA of the aliens. They are made by Vilgax. There are 4 kinds of such RNAliens. They are Berserkers, Rocketopedo, Heatix and Florux.
Berserkers will ram anywhere they like and fires rockets. He is some of the most used RNAliens by Hel and Vilgax.
This shoots rockets in a suspended animation making Ben hard to avoid.
Heatix is the weakest of all the RNAliens. He can shoot small fire bombs, but vilgax has other plans to make Heatix stronger.
Florux are second weakest, they can blind someone with their pollen smokes.