- Shape-Shifting- J' onn has the to seemly limitless mental control over his shape and color.
- Invisibility- J' onn can stop light from bouncing off of him, making him unable to be seen.
- Phasing- Somehow he is able to become intangible like Phantom Girl.
- Superhuman Durability- He can absorb almost any kinetic energy and harden his body so much it rivals Superman!
- Superhuman Strength- He is one of the strongest being on Earth. With 100 + class strength, he can lift oil tankers!
- Regeneration- J' onn can grow back lost limbs and body parts.
- Flight- Manhunter has been seen flying at speed of Mach 10 (7690 MPH for you not-brainiacs) and 7 miles per second.
- Superhuman Endurance- J' onn can work under extreme conditions and endure more then "normal" humans.
- Extrasensory senses- Manhunter has nine senses!
- Telepathy- He is one of the Earth's strongest telepathes. He has the following powers via telepathy: illusion casting; sleep inducing; mind scanning; creating metal sheilds (stopping him from being affected by telepathy); downloading information from people's brains; limited mind control; thought sensing; can create telepathic links; attack people mentally.
However these power have one weakness: fire. He is scared of fire (it unknown if this a cultural or personal fear). Exposure to fire will cause to lose his powers and become vulnerable.
DC Comic Encyclopedia