Galaxy Man:

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. He seems to have the ability to fly short distances, retracting his arms and legs when he does so, just like Gigabolt Man-O-War's "UFO mode" from Mega Man X8, along with teleportation. Galaxy Man is also able to constantly change colors. His weapon, the Black Hole Bomb, can be used to suck enemies into a black hole or drain certain enemies' health.
Astro Man:

He was originally built to work in a planetarium, but Dr. Wily modified him for combat, and he uses his abilities to confuse his opponents. Despite his great powers, Astro Man is modest and shy. He's easily startled, and thus not very reliable in battle; and more of a coward. He is the world champion at hide-and-seek. Astro Man's abilities range from projecting life-like hologram's, teleporting, turning invisible through a cloaking device, and the powerful Astro Crash where he summons meteors made out of energy to rain down on his opponent.
Astro Man, and Galaxy Man are holding a large Hide-and-seek contest with other Robot Masters, and even a few others. The reward is a trophy, cash prize of 1,000 US Dollars, and a free auto-graph from either Splash Woman or Tengu Man.
Currently they are on their 5th round out of 6. The contest was Astro Man's idea, and ironically Astro Man is losing.