Mega Man 2: The Power Fighters is the direct sequel to Mega Man: The Power Battle. Like its predecessor, this arcade-only game does away with the levels of the classic Mega Man games and instead pits you against Robot Master after Robot Master. It features four characters and three paths to choose from, with different Robot Masters to fight in each mode. With each path and each combination of characters, you can get unique epilogues that add some worldbuilding and depth to the characters chosen.
For this run, CoolHandMike chooses the "Rescue Roll!" path, using both Proto Man and Bass simultaneously to defeat each Robot Master faster than with a single character. RNG trickery was also involved in quickly beating the Robot Masters. For more details, you can read the author's notes.
Warning: This game contains scenes with flashing lights that are not suitable to those with photosensitivity issues.