Bowser Jr. III continued his run until he found Mario, Peach, Yoshi, Toad, Wario, and Donkey Kong standing in his way. "WHAT? How are YOU still alive?" Wario responded, "Eh, just some bruises." Bowser Jr. III snorted and rushed towards them. Yoshi threw his grapple at his attacker's arm, but Bowser Jr. III swung him around until Yoshi slammed into Wario. Donkey Kong backed away and got in his cyber barrel, speeding towards the enemy, yet Bowser Jr. III got in his own shell and the two chased each other like two spinning tops, until the Koopa shell finally smashed the barrel, knocking down DK into a dazed state. He remerged and scoffed at them: "Oh DK, didn't anyone tell you that for every reaction, there is an EVEN MORE POWERFUL opposite reaction?"The remaining heroes exchanged looks and Peach told the group, "I thought there would be an equal reaction." Mario giggled. "Uh, Peach, you're a' starting to sound like Lou." "Huh?" "It's a compliment; you're both smart." Peach blushed and said "Aww." Bowser Jr. III, revolted by their romantic banter, charged towards the group again and grabbed Toad. Peach tried clubbing him with her suit's signature weapon, but his scales were too tough to make him react and let Toad go. His claws punctured Toad's jetpack and he was thrown backwards, straight towards the large Bob-omb Luigi had set. Fortunately, he flew above the bomb, merely lighting the fuse before he crashed head-first into a bush.
Luigi used the spark to light two of his smaller Bob-ombs before running away. He took a deep breath, focusing on his aim. Meanwhile, Bowser Jr. III tried to vanquish Mario with his fire breath, but Mario quickly shot a flame steam from his own hands; the two battled it out, but Peach still couldn't get more than a couple of bruises on the villain. Luigi knew he didn't have much time left, so he rolled one Bob-omb towards "Bowzoid's" tail ,and threw another towards the back of his head. They both hit the spikes and exploded on contact. Finally, "Bowzoid" was able to be hurt; this distraction gave Mario an edge, and he sent his fire attack with all power out on him. Then, the Big Bob-omb exploded, causing everyone to look behind them. Although he wasn't hurt, the explosion's force caused Luigi to stumble; not only that, but his cover was blown.
Mario and Peach tripped Bowser Jr. III before he could attack. She then uttered a spell, healing the other four. Mario, Peach, Yoshi, Donkey Kong, and Wario started hitting Bowser Jr. III immediately, joined by Luigi, then Toad. While it is unclear who struck the final blow, the gang all left when he was knocked out and dazed. Luigi, ever the cautious man, gave two last kicks at "Bowzoid's" arms before finally stepping of his shell. Donkey Kong, embarrassed to have let Mario's brother simply disappear, asked Luigi what he was doing during after he and Toad met up with the others. Before Luigi could devise an epic lie, three turquoise warp beams came from the sky. Two Toads in police uniforms, along with Prof. Mac-Fac emerged from them. "We have come for the villain," one of the cops said as the other handcuffed Bowser Jr. III. "Would you care to see him in Star Prison?" All seven nodded; Wario seemed particularly enthusiastic. Mac activated another portal into which the police trudged Bowser Jr. III. Mac stopped Mario and his friends from entering: "You're gonna have give the suits back first." Everyone except Luigi responded with one big "Awwww." "Sorry, it's the Proper Rules of Time Travel, planned ever since my father invented the thing. You don't want to run the risk of creating another paradox or (*gasp*) more than one, don't you?" They all pressed their collar buttons and the suits reverted to their original disc form, which were given to Mac.