Doctor Manhattan

Dr. Jon Osterman was a lowly lab technician before he was caught in a radioactive particle test. He returned as a god-like superhuman. He is powerful and highly intelligent, yet he grew to become emotionally distant towards people. He is the only superhero with powers in the Watchmen storyline. In 1959, in an accident that was certainly unplanned and just as certainly unrepeatable, a young American man was completely disintegrated, at least in a physical sense. Despite the absence of a body, a form of electromagnetic pattern resembling consciousness survived, and was able, in time, to rebuild an approximation of the body it had lost. After mastering his powers, and when Flash changed his universe’s timeline he felt that change and went to DC Multiverse, manipulating everything and preparing for his future. Doctor Manhattan had near-infinite power and could do anything, he was the most powerful being in his own universe and he should be at least the 5th most powerful being in the entire DC Metaverse. According to his feats, he can manipulate the Metaverse which is something that not many beings are capable of doing.

Reality Warping

• Saved Jor-El. (source) (Also, a Time-Travel feat because he went back in time to get him.)
• Made a place for Jor-El to show him all the horrible things humanity did. (source)
• Changes his mind and destroys the Flashpoint. (source)
• Creates a ring of blue fire and Teleports everyone in it to a different location and levitates the ring. (source)
• Ends everything. (source)
• Returns the Metaverse to how it was before he interfered with its events. (source)

Matter & Energy Manipulation/Projection/Absorbtion

• Can allegedly change a gun into steam or the bullets into mercury or the bottle into snowflakes. (source) (Is also phased through a table.)
• Builds a fortress on Mars. (source)
• Gives Laurie an oxygen field on Mars. (source)
• Makes water. (source)
• Makes milk. (source)
• Killed the Reverse Flash by burning half of his body. (source) (Thawne’s perspective: https://imgur.com/a/46CW2VP)
• Is unphased by magical attacks, explains the nature of Magic, learns it, and blasts everyone with magic. (source)
• Absorbs the Green Energy of a Green Lantern Ring and Destroys the Ring. (source)
• Defeats some heroes. (source)
• Changes his appearance by shifting the lights color frequencies around him. (source)
• Disintegrated Metron and Owlman. (source)

Teleportation

• Sent some protestors home. (source)
• Teleports Rorschach out of a government facility. (source)
• Teleported Laurie to California. (source)
• Sends the audience away. (source)
• Goes to Mars. (source)
• Teleports a dying Jor-El to himself. (source)
• Sent Jor-El to Earth. (source)
• Teleports himself to a Bank and causes a man’s finger to float/levitate. (source)
• Saved the Comedian’s life by Teleporting him to an ocean on Prime Earth. (source)
• Teleports himself to Ozymandias. (source)
• Sends everyone back where they were. (source)
• Teleports himself to Carver Coleman. (source)
• Teleports everyone from his universe to himself. (source)
• Goes to his universe and causes some plants to grow. (source)

Chronokinesis

• Causes disruptions within the temporal nanostructure of the Timeline. (source)
• Kept the Flashpoint running even though it wasn’t supposed to exist. (source)
• Travels to the year 1948. (source)
• Travels to the year 1931 and 1986. (source)
• Changes his past, makes some plants to blossom, and gives a child all his powers. (source)

Cosmic Awareness

• He can look into his own timeline. Past, present, and future. (source)
• He knows what people will say to him before they say to him since he has already lived in the future. (source)
• Claims to read atoms. (source)
• Says he senses tachyons. (source)
• Experiences the future at the same time as the present. (source) (Also, teleports himself to somewhere else.)
• Watched Barry change the Timeline, stole 10 years of history, and created a new universe by changing the history. (source)
• Senses that Erica Manson is pregnant. (source) (He basically knows that their second child is very important so he doesn’t kill her and her husband. Again: https://imgur.com/a/AiQBcix)
• Knows that Ozymandias lied about having cancer. (source)
• Sees the future and believes that he can destroy everything. (source)
• Sees Carver’s future and then Teleports away. (source)
• Proves that Superman is the starting point of the DC Metaverse. (source) (And tells the origin of all the members of the Justice Society of America: https://imgur.com/a/CinQVad)
• Reveals the true nature of Prime Earth. (source)
• Explains the future of Superman. (source)

Miscellaneous

• Grows relatively big. (source)
• Telekinesis and Phasing. (source)
• Is in three places at once, phases, and reforms a Beaker. (source)
• Dresses with Telekinesis and Teleports himself to a news headquarters. (source)
• Is on Earth and Mars simultaneously and Teleports Laurie to Mars. (source)
• Levitates his fortress. (source)
• Says he might make human life. (source)
• Walks on water and on walls. (source) (Also phases through a wall.)
• Gives people sunburn when he first reformed. (source)
• Blows head off a thug. (source)
• Becomes big and kills some Vietcongs. (source)
• Disintegrates Rorschach. (source)
• Rebuilds himself for the first time. (source)
• Destroys his fortress and shields Laurie. (source)
• Vaporizes and reforms. (source)
• Manipulated Pandora into opening the Pandora Box and disintegrated her. (source)
• His powers are WAY beyond Mr. Mxyzptlk. (source) (Mxy is afraid of him and calls him the “Architect” of all the weirdness: https://imgur.com/a/NX7n1na)
• Moved Allan Scott’s Lantern 6 inches out of his reach thus killing him. (source) (By doing this he caused a Butterfly Effect that destroyed all the heroes of the future: https://img.techpowerup.org/200612/t461fmkisftc-y-to7p2o3-rbablpz2sff-l-a2upehgi5-fcqkkhztsmav59qjvvf0jlx-aj-ucsodpk7ioq6e75xxi-lqbcfn6ig8qsjakjhd-ammeoarpdehtgrqloxsbk0upaq-s1600.jpg)
• Telepathically communicates with Firestorm and shows him the truth. (source)
• Is unphased by multiple attacks from superheroes and finally, they kill him. (source) (He reforms himself: https://imgur.com/a/Oc1vhZq. He then defeats all the superheroes: https://imgur.com/a/JC3S3NB)
• Incapacitates the Heroes. (source)

Before Watchmen

• Atomically disassembles a gun. (source) (Non-canon.)
• Disassembles a machine, reassembles it, and Teleports away. (source) (Non-canon.)
• Senses his past self before the accident. (source) (Non-canon.)
• Sees the future. (source) (Non-canon.)
• Travels back in time to an alternate timeline. (source) (Non-canon.)
• Alters the outcome of an event. (source) (Non-canon.)
• Exists in at least two timelines simultaneously. (source) (Non-canon.)
• Merges multiple timelines. (source) (Non-canon.)
• Teleports Adrian and himself. (source) (Non-canon. Note how he says he moves space instead of moving himself.)
• Says he created and destroyed alternate universes. (source) (Non-canon. He doesn’t create universes he just creates Alternate Timelines.)
• Shrinks down and starts the process of creating life. (source) (Non-canon.)