Miles "Tails" Prower

Miles Prower (マイルス・パウアー), better known by his nickname, Tails (テイルス), is a character from the Sonic the Hedgehog series. Tails is a two-tailed anthropomorphic fox that can fly by using his tails as a rotor. He is a talented inventor and the best friend of Sonic the Hedgehog.

Worlds Collide
Tails was captured by Bass and Metal Sonic while in house and taken to the Wily Egg, where he is transformed into the Roboticized Master Tails Man by Dr. Wily and Dr. Eggman. His Special Weapon is the Tail Wind. As Tails Man, Tails transmitted the footage of Sonic and Mega Man fighting each other at the Green Hill Zone (having been tricked by Copy Robot and Metal Sonic, respectively, into believing that Mega Man had kidnapped Sonic's friends and Sonic participated in a theft of a jewel at a bank) to the doctors, and was later ordered by the doctors to attack them when it became apparent they were about to discover the doctor's role in their fight. Tails Man was eventually defeated, returning back to his true form of Tails when Sonic and Mega Man teamed up to stop Tails Man.

Tails later aided in tracking down where Wily and Eggman were from the Warp Ring used by Bass and Metal Sonic to kidnap Dr. Light. Mega Man also absorbed Tails' (or rather, Tails Man's) ability just prior to Tails Man returning to normal, although he waited until they fought the Genesis Unit to destroy all save for Mega Water S, as well as Copy Robot.

Tails later joined Mega Man and Sonic in infiltrating the Wily Egg, being the one to crack the passcode. However, he was incapacitated by a Ballade Cracker to the face during the fight with the Mega Man Killers and had to be ferried out by Rush.

Trivia

 * The "Tails" on Tails Man's body bear a strong resemblance to Sage Harpuia's wings from the Mega Man Zero series, as well as Tornado Man's fins from Mega Man 9. Coincidentally, all three characters also had wind as a primary ability.