Galaxy Man

Galaxy Man (ギャラクシーマン) is a boss from the game Mega Man 9. Galaxy Man was designed to work in a space research center where it was his job to instantly calculate the trajectories for rockets. He loves to observe stars and name any new ones that he finds. His stage consists of a series of portals, similar to Astro Man's stage from Mega Man 8. His weapon, the Black Hole Bomb, can be used to suck enemies into one area or drain certain enemy's health, similar to the Gravity Well weapon from Mega Man X3. He seems to have the ability to fly short distances, retracting his arms and legs when he does so, along with teleportation. Galaxy Man is also able to constantly change colors.

Strategy
Galaxy Man begins battle by hovering over the player, dealing damage if he does not move quickly enough. He then jumps in the air and fires a Black Hole Bomb at where the player is standing, then teleporting behind the blackhole. His weakness is the Concrete Shot, but the Mega Buster seems to work quicker. After Galaxy Man starts floating, run around to avoid the Black Hole Bomb, then shoot him while he is standing behind it.

Trivia
Galaxy Man's flying techinque is similar to Bender's from Futurama. In the ending of the episode All Roswell That Ends Well, Bender can fly like a UFO due to his body being rebuilded by the Area 51 guards who thought Bender's body was a UFO.
 * Galaxy Man's eyes are similar in appearance to Astro Man's eyes. In Galaxy Man's mugshot and sprite (seen in this picture, his eyes are green, but in his picture, his eyes are red.