From Heroes Wiki

Digital form
Originally held by:	As part of another ability: Horrorman
Absorbed by:	None
Ability to:	Transform oneself or another into a digital version

Digital form is the ability to alter one's appearance to appear like a computer code.

Limits

The user has, as a by-product of video game manipulation, the ability to alter his appearance to be like digital code on a computer screen. This ability has been useful as well because the user can manipulate code, allowing the user to manipulate his physical form allowing a form of shapeshifting.

He is able to extend his ability to other individuals and in fact help them transform into another individual.