Mega Man 3

[Seven Force]

This is from Megaman Network, the bold and parenthesis were added by me to clarify incase it's not clear enough.

Mega Man
Released: 1987
Platform: NES
Summary: Dr. Wily turns disloyal and reprograms six powerful humanoid Robot Masters, prompting a young robot boy named Rock to undergo a transformation into Mega Man to bring down the evil scientist.

Mega Man 2
Released: 1988
Platform: NES
Summary: Following his first defeat at the hands of Mega Man, Dr. Wily creates eight eight new Robot Masters to challenge the Blue Bomber.

Mega Man 3
Released: 1990
Platform: NES
Summary: Dr. Light and Dr. Wily begin working together again, and they call on the help of Mega Man to find power crystals needed to complete their newest peace-keeping project, Gamma. Amidst Mega Man's battles, he encounters a new robot...
(He creates these robots, Wily and Light created Gamma and Wily later took control of that)

Mega Man 4 - In Depth Coverage
Released: 1991
Platform: NES
Summary: One year after the destruction of Gamma, a mysterious letter arrives at Dr. Light's lab. Dr. Cossack, a Russian scientist, claims he is the superior robot designer, and will prove it by having his eight creations destroy the Blue Bomber!
(Dr. Cossack made/reprogrammed them)

Mega Man 5 - In Depth Coverage
Released: 1992
Platform: NES
Summary: Out of the blue, Proto Man turns evil and kidnaps Dr. Light! Mega Man must uncover why his brother has turned disloyal while at the same time storm his special fortress and take out the newest wave of Robot Masters.
(Dr. Wily made them)

Mega Man 6 - In Depth Coverage
Released: 1993
Platform: NES
Summary: Mr. X, mysterious millionaire, stages the first Robot Master Expo to find the world's most powerful robots. But things turn deadly when Mr. X seizes control of the contest and uses the finalists to take over the world!
(As the summary states, he steals the eight robots)

Mega Man 7 - In Depth Coverage
Released: 1995
Platform: Super NES
Summary: With the help of his loyal Robots, Dr. Wily breaks out of jail to continue his mad reign of terror. Mega Man sets out to stop him, encountering a new robot along the way. But is he a friend or a foe?
(Do I need to explain this one?)

Mega Man 8 - In Depth Coverage
Released: 1997
Platform: PlayStation, Saturn
Summary: A meteor from outer space crashes on a remote island, piquing the interest of both Dr. Light and Dr. Wily. Mega Man goes to investigate, but must first fight through Wily's army of Nefarious Robots before he can uncover the meteor's secrets.
(He creates these also)

Mega Man & Bass - In Depth Coverage
Released: 2003
Platform: Game Boy Advance
Summary: When a new robot named King steals all of Dr. Wily's robot data in order to create a Perfect King Army, Mega Man, Bass, and Proto Man must all team up to bring him down.
(Ditto, including King, which turned disloyal because he was programmed to hate ALL humans.)