Mega Man didn't hesitate - much - before leaping into battle, actively pursuing the eight Robot Masters that Vinyl - he wasn't going to keep referring to her as X-P0N3 in his head now that it was a takeover attempt, since it always screwed with his internal spell check - had taken control of. Thankfully, he knew he didn't actually have to defeat any of them, just inflict enough damage that he could duck in and tear off the ribbon being used to control them. Obviously, Vinyl wanted him to manage it, since she'd emailed him a map of where the Robot Masters were attacking, and even a list of who she expected to be weak against whose weapon. He decided to ignore weaknesses, however, on the off chance that Vinyl had put Freak Chips in the ribbons along with the control chips.
Since Flame Man had taken over an Oil Field, Mega Man decided to go after him first. After all, he was trying to rescue these robots, and letting Flame Man accidentally blow himself up wasn't on that checklist. The Oil Field was surprisingly clean as he arrived, well shielded in an Arabian architectural style amidst the desert sands. At first all Mega Man encountered there were rogue Mettools, which he ignored as he could easily get around them.
The more dangerous enemies were floating robots that dropped lit matches. While not dangerous in themselves, there were quite a few oil pits scattered around, and the last thing Mega Man needed was for them to erupt in flames because of a dropped match. He destroyed these bots on sight.
As he continued on, he found a more interesting foe, a robot that sat flat on the ground heavily armored, and exploded when flipped over by a level three charged blast. However, when it landed in an oil pool, it became a floating platform he could ride across by repeatedly depressing the switch revealed on its underside.
The pattern of flame tossing robots positioned near oil pools repeated, allowing Mega Man to prove to himself that he no longer feared leaping precisely from small platform to small platform. He found himself chuckling as he saw the same patterns Vinyl had used before, turning the struggle into a game...and now, Mega Man actually felt like playing. He felt he was beginning to understand how Dr. Light could be so forgiving of Dr. Wily. Is this what friendship is like? he thought to himself. Or have I just gone mad?
Inside a final chamber, he found Flame Man madly blasting every surface with his fire. "No germs, no spills, no mess!" he barked out. "All shall be cleansed with fire!" He spun as he caught sight of Mega Man. "You! You are filth upon my cleansed land! You shall burn in cleansing flames!"
Mega Man quickly leapt back and forth, evading the waves of fire Flame Man unleashed. "Whoa! Cool off a bit and listen to me!"
"Cool is dirty!" Flame Man screamed. "Fire shall clean!" Leaping back, he fired off blasts of fire, trying to hit Mega Man.
Offered no other method of countering, Mega Man started firing, trying to inflict enough damage to slow Flame Man down a bit. He quickly realized that Flame Man followed an attack pattern relative to whatever position he was in after landing from a jump, and stuck to that. Before long, he'd worn Flame Man down enough with his regular shots that openings were starting to appear...but they didn't last long enough for him to close the distance. "This is going to hurt you more than me!" he warned as he started charging his buster.
"Burn!" Flame Man roared, unleashing more waves of fire along the ground.
Mega Man shifted into position where the waves would miss him, then turned his back on Flame Man. As he heard his foe raising his buster, he unleashed his own. "Skull Buster!"
The blast lashed out, the recoil sending him slamming bodily into Flame Man. As they both crashed against the wall, Mega Man spun and tore the ribbon off.
Flame Man quickly pushed him off. "Don't touch me!" he screamed, quickly proceeding to sterilize himself with fire. "...huh. Recall code. Clean room!" With that happy squeal, he beamed out.
A room popped open, revealing a weapon chip for Flame Man's F. Blast Master Weapon and a new design schematic for Rush. Picking it up, Mega Man grinned. "Dr. Light's going to have a field day with this," he chuckled, beaming back to the lab.
With the new Rush Power Adapter equipped - allowing Mega Man to equip Rush as an armor suit that boosted his defense and offense to huge margins at the cost of some maneuverability and the use of Master Weapons - Mega Man decided to go after Blizzard Man next, figuring that the F. Blast would help him out on the Frozen Island.
Once arriving, Mega Man found that there weren't too many robots blocking his path across the snowy plains. While towers soared in the distance and mountains reared in the further distance, the path Mega Man walked had only the simplest of structures. The few robots that lined the path were heavily armored, and could only be damaged when they opened their armor to attack. While he had no trouble fighting his way through, he couldn't help but find the walrus bots oddly adorable. Probably too much time with Vinyl, he mused internally. Everything's starting to seem adorable.
After making his way further in, the next place of interest was as he crossed a submarine that raised and lowered in the water with a spiked ceiling directly above. While crossing it proved easy enough, the path beyond involved leaping from bomb platform to bomb platform. As Mega Man had learned previously, depressing the switches on these - which were pointed upward for this segment, meaning he had to to stand on them - started a count down, ending in the platform exploding. As such, he crossed quickly to climb up a ladder.
Beyond that last path, the only real obstacle Mega Man encountered was more bomb platforms which he had to carefully maneuver around. Once past that, he made his way into the final chamber, only to dive to the side to evade an ice blast from Blizzard Man. "Hey!"
"No need for the cold shoulder," Blizzard Man replied. "Just wanted to make sure you kept a cool head." Blizzard Man suddenly curled into a ball, rolling straight for Mega Man.
"Yipe!" Mega Man yelped, lunging to the side and opening fire, aiming for the ribbon as it became visible again. Thankfully, Blizzard Man and the ribbon were large, slow targets, allowing Mega Man to get in plenty of hits even as he evaded the flurry of ice Blizzard Man sent his way.
Blizzard Man continued his attack pattern without fail, and eventually his ribbon fell apart. "...you took my victory. That's cold. But it looks like we'll have to put this disagreement on ice. I'm being called home." With that, Blizzard Man beamed out.
Another room opened, revealing a weapons chip for Blizzard Man's Master Weapon, B. Attack. "Two down," Mega Man muttered to himself as he warped away.