Early into Dr. Robotnik's rule over Mobius, Porker designed a weapon that could destroy Badniks and infect their remains with a "Nicenik" computer virus which would spread to other Badniks. Sonic the Hedgehog would test this weapon out on Moto Bugs in the Green Hill Zone, creating a Nicenik outbreak. When Badnik Army Repair Functionaries Cam and Bert arrived to fix the Badniks, Cam would drain the virus before Bert repaired them.
A pair of Niceniks, Bim and Bom, would escape capture and roam the Green Hill Zone. These Niceniks eventually attacked B.A.R.F., but were destroyed themselves. After removing the virus from their remains, B.A.R.F. left, thinking the Niceniks had been contained. In truth, at least one Nicenik remained free.