The Accererazor
When Scorpio first tries to mingle on Earth, he creates a human form and names it Enji Rai. Even in human form, however, the atmosphere still harms him, so he is prone to frequent dizzy spells and surreal transcendental experiences.
Later, Scorpio bonds with a young astronaut by using the Accererazor device. This allows Scorpio to exist on Earth for extended periods and not have to worry about the atmosphere. Interestingly, the Accererazor doesn't belong to Scorpio. It arrives on Earth buried inside a meteor, in response to a desperate plea from Scorpio to X35 for help. He is told that the device may be faulty, however, and that the Accererazor may damage Scorpio's own being if he ever separates.
The astronaut had crash-landed on Earth with a complete case of amnesia. Scorpio bonded with the poor man and named himself Enji Rai again. Scorpio not only vowed to continue to protect the Earth, but also to help the man recover his true identity.