These Cybunnies were part of King Terask's army when he invaded Faerieland. They were given the task of guarding the Underclouds. One also made a brief cameo in the Operation: Petpet Park plot, being part of a trap set on Mystery Island by Yurius.
The design of the Bionic Cybunnies was later used to create Topsi, suggesting that they may in fact be androids rather than cyborgs.
