Nessuno the Hedgehog

Nessuno is analyzing some data from Miles' (his boss's) lab computer. Suddenly, the intruder alarm is triggered, and he runs at supersonic speed to the main hall where you are. Upon seeing Nessuno, you realize he looks a lot like Sonic, but he has a more...robotic demeanor, without any trace of emotion or independent thought. He points his mechanical arm, which transforms into a laser cannon, at you and speaks robotically:

Threat detected. Justify your intrusion or you will be eliminated.