Despite appearances, Ultron has a veritable cornucopia of powers available to him.
Although the movie version of Ultron only used limited powers while on-screen, it's definitely not accurate to say that Ultron has no "special powers". In the comics, he has had the following technology & abilities:
- Superhuman strength *
- Superhuman durability *
- Superhuman speed
- Genius intellect *
- Self-repair/healing abilities *
- An understanding of technology which surpasses that of Tony Stark *
- Concussive blasts/repulsors *
- Supersonic flight capability
- Force field technology *
- Limited telekinesis
- Limited shape-shifting ability
- Mind control
- The ability to "hack" into any computer system *
- The ability to upload his consciousness into any computer system *
- The ability to change bodies as needed *
I've placed an asterisk beside the abilities we see on-screen in Age of Ultron.
The most likely method for moving any object would be telekinesis, but if that's the case it certainly could have been called out more. As it is, we are never told that the MCU Ultron has that ability. Rather, he makes a gesture, his hand glows, and the chunk of road is moved upward. This could simply be a clever use of force fields, but it could just as easily be a form of telekinesis. In fact, he used something similar
to pull Iron Man towards him during the confrontation at Klaw's mine.
In the image below, the comics version of Ultron utilizes both his shape-shifting AND telekinesis abilities to re-shape his form:
