|The character Rush did not originate from fanon. This article can be edited freely by everyone in the community.
Despite covering an existing subject, this article may include related Fantendo content. These external sources may have more official information:
Rush is Mega Man's faithful robotic dog companion, created by Dr. Light to assist Mega Man in his travels, having several functions that the blue bomber can use. Rush first appeared in Mega Man 3, and ever since he appeared in other games relating to the classic Mega Man series, as well as appearing in crossover games involving the series, like Super Smash Bros. for Nintendo 3DS / Wii U.
Initially, Rush was able to transform into a coil, a hoverboard, and a submarine, though in later games, he has been given more functions, like being able to dig out items from the ground, turn into a motorbike, and being able to fuse with Mega Man, turning him into either Power Mega Man or Jet Mega Man in Mega Man 6, and Super Mega Man in Mega Man 7.
- Rush's character concept appears to be loosely based on Friender, a support unit of Neo-Human Casshern, a Tatsunoko character, since Friender has the same ability of transforming into various vehicles for Casshern. Friender can be seen transforming into a jet, a drill-tank, and a submarine similar to Rush.
- Rush Bike may have been inspired by Rush Cycle and/or Rush Cannon, two entries submitted in a contest for fans to design a Robot Master.
- Rush Drill was originally planned to appear in Mega Man 3, but the idea was scrapped. One of the reasons why Rush Drill was removed from Mega Man 3 is probably because the player could skip most parts of the level using it.