Project Omega

Project Omega was a project created by the Rooters to create super-soldiers capable of changing into various aliens at will. Although most of the test subjects didn't survive the procedures, the final one in paticular, Simon Masterson, succeeded by having the Omnimatrix implanted in his brain, allowing him to successfully change into different aliens and was dubbed Weapon Omega.

Trivia

 * Project Omega is similar to Project Rebirth and Weapon X from Marvel Comics.