- For further reading on Rush outside of the "Worlds Collide" crossover, check out Mega Man Knowledgebase.
Rush is a robotic dog created by Dr. Light of Earth 20XX as a companion to his robotic son Mega Man. Rush is one of Mega Man's most faithful allies, often joining him in battle and providing support through various means.
Rush was built by Dr. Light to aid Mega Man in his various missions, helping him to deal with threats like Dr. Albert W. Wily and Xander Payne. He also helped Mega Man when Break Man attacked his birthday celebration, only for them all to be caught up in the effects of the Genesis Wave. (MMA)
Making New Friends
Along with Tango, Eddie, and Beat, Rush was summoned by Mega Man to help him in his battle against Sonic the Hedgehog, who at the time Mega Man considered an enemy. After a brief but intense scuffle, Rush and his master were attacked-along with Sonic-by Tails Man of the Roboticized Masters, and the heroes quickly put aside their fight to protect civilians. Once Tails Man was restored to his organic form of Tails, Rush befriended the two Mobians, accompanying them, Mega Man, and his fellow robots back to Light Labs. Once there, they stumbled upon Bass and Metal Sonic v3.0 in the midst of kidnapping Dr. Light. Once the heroes managed to open a Warp Ring to follow the villainous robots, Rush came along at Proto Man's insistence. The robot dog thus entered the Skull Egg Zone with his friends, and served as Mega Man's transport as he battled the Copybot and the Genesis Unit. He would likewise participate in the first battles with the other Roboticized Masters, and quickly befriended Charmy Bee after his restoration to normal. With that done, Rush joined his friends in heading deeper into the Zone in search of Dr. Light. (StH: #248, #249, SU: #52)
Rush and his friends continued their journey through the Skull Egg Zone, eventually engaging an old foe: Shadow Man of the Robot Masters, accompanied by Shadow Man of the Roboticized Masters, whom the group managed to revert to his normal form of Shadow the Hedgehog. The four heroes would later engage Silver Man and Blaze Woman, with Rush falling victim to Silver Man's powers before the robot was returned to his normal self, Silver the Hedgehog. After Blaze the Cat was also returned to normal, Tails looked Rush over, and was reminded of T-Pup, his own robotic dog. The group continued on their journey, eventually facing and freeing Knuckles Man and Rose Woman as well, restoring the pair to their former identities of Knuckles and Amy. After learning that Proto Man and the Chaotix had located the stationary Wily Egg, the team split up, with Rush and Mega Man going to collect Blaze and Silver for the coming battle. (MM: #26, SU: #53)
Soon enough the original search party was reunited at the Wily Egg, with the additions of Charmy, Shadow, Blaze, Silver, Knuckles, Amy, Espio the Chameleon, and Vector the Crocodile. This group found themselves faced with a huge obstacle: an army of Robot Masters time-cloned from Mega Man and Rush's past to engage them. Rush joined in the battle, pursuing Skull Man before being called away by Mega Man to provide transportation to the Wily Egg. He was thus the first to identify Dr. Light as the scientist fell from the Wily Egg, and his panic alerted Mega Man and Sonic to the fact. The pair rushed to save Light, too far away to accomplish the task, but Shadow managed to rescue the doctor using Chaos Control. With their creator safe, Rush and Mega Man joined Sonic and Tails in boarding the Wily Egg via teleport. The two then had to suffer through Mega Man and Sonic's debate as to whether the flying fortress was influenced more by Dr. Wily or Dr. Eggman. Unfortunately, they were then forced to contend with the Mega Man Killers, with Rush joining Tails in battling Enker before helping Mega Man destroy Punk. Sadly, Tails was injured by Ballade's final attack, and a mournful Rush was ordered to carry him back outside. (StH: #250, MM: #27)
Despite their heroic efforts, Rush and the others were soon surrounded, with Rush helping a weak Tails stand up as they bravely faced the enemy. As the battle continued, Tails was forced to lie back down, with Rush standing guard over him and Dr. Light. The arrival of the Light Labs Robot Masters under Elec Man turned the tide, allowing Rush to join Light, Knuckles, and Proto Man in boarding the Wily Egg. Rush carried Light to release a captured Sonic and Mega Man while the others battled the doctors. With Mega Man damaged and weakened by his fights in the Wily Egg, Dr. Light suggested that he employ the Super Adaptor with Rush. Mega Man did so, and Rush merged with his master's body armor. Sonic then suggested that they take it a step further, and both heroes drew energy from the Chaos Emeralds gathered by Wily and Eggman, becoming Super Sonic and Super Mega Man. The two then engaged the evil doctors in their super-powered Egg-Wily Machine X, and succeeded in defeating them. They then set to work reversing the Super Genesis Wave, with Rush and Mega Man succeeding in returning their world to normal. As such, they were restored to their proper place and time in it. (SU: #54, StH: #251)
Back in their home reality, Rush would aid Mega Man in further adventures, such as helping to defeat the evil alien computer Ra Moon and more of Wily's Robot Masters. However, it wouldn't be long before Rush joined Mega Man on another interdimensional adventure, reuniting with Sonic and his friends and meeting new allies like the Knothole Freedom Fighters, Maverick Hunters, and Team Sticks. As usual, Rush served as Mega Man's transportation during an aerial battle near the Lost Hex, in which the unified heroes did battle with the Mechaniloid army under the Deadly Six. Unfortunately, he and the other Earth 20XX world robots fell under the Deadly Six's technology controlling abilities, and Rush ended up chasing after Tails while the heroes were forced to battle each other. (MMA; SB: #9; StH: #274)
Rush emulates a typical canine in his love and loyalty for his master, Mega Man, and in his hostility towards anyone who threatens the robot hero. However, he is generally friendly towards most individuals, quickly making friends with the residents of Mobius.
Rush is possessed of a number of abilities due to his robotic nature. He has a spring platform built into his back that Mega Man or others can utilize to launch themselves high into the air. His greatest advantage, of course, is his power to transform into a flying craft which Mega Man or others can ride. He can also fuse with Mega Man via the Super Adaptor, giving him flight and enhanced strength.
Rush appears as an armored dog with a tan face, brown nose, and blue eyes left exposed by his red helmet, which resembles Mega Man's. Rush also has red pointed ears, a pink neck, and a pink midsection connecting his spherical red torso and pelvis. He has a white, segmented tail, and his limbs are connected to his body by pink circular protrusions with yellow centers. His upper legs are white, his lower legs pink, and his feet are red and rounded to resemble paws.