Surge Clone 21 was another experiment by Dr Starline the Platypus. She is a complete robot much like her newer iteration, but was awakened prematurely. She was very unstable, and deactivated for a while. Her personality is a mix between the cockiness of Kefla and the psychotic nature of Android 21’s evil state. She sees her only reason for being is to destroy Sonic the Hedgehog and his friends, and take her life for herself, as she doesn’t see herself as a robot. She can even match Sonic’s speed