The Larroo are at least three sentient species from the planet Larroo. During Brainiac's invasion, they rallied together to mount a counter attack but were outmanned and outpowered by the Brainiac Probes. Superman intervened on their behalf but it was too late and they were taken. Several Larroo were placed in containment pods. A composite being named Ultra was created by Brainiac using these species.
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