Today was the day Bowser was finally gonna be married to Princess Peach, and all of his army, the Koopa Clan, had come to watch the celebration at Bowser's amusement park themed castle. YOU had also joined, you weren't part of Bowsers army, but he didn't mind a stranger joining in as you sat next to a bored looking King Boo (who kept complaining to you that this whole thing was a scam) among the hoards of Koopa Troops. Bowser himself, wearing his white tuxedo and top hat, looks happily at his bride-to-be as the marriage officiate is about to give his sermon.

Suddenly however, Peach is revealed to be a cardboard cutout as it flops to the ground, as the marriage officiate reveals themself to be Orbot and Cubot in disguise. With the Koopa Troops alarmed (except for King Boo, who had a "called it" look on his face) and Operation Catfish successfully complete, Orboto projects his leader's hologram message.

Eggman: "I've come to make an announcement! This territory is now the base for my upcoming Eggmanland 2."

Bowser, obviously miffed at this absurd declaration + the whole "getting catfished" thing, rips off his clothes as he glares up at the hologram, Bowser Jr with his magic paintbrush standing by his Pa.

Bowser: "What a joke!"

The hologram of Eggman laughs and disappears as the Egg Fleet, lead by the Egg Carrier, appear from the clouds as Eggman confidently makes another announcement over a broadcast speaker.

Eggman: "I am Doctor Eggman, your new genius overlord."

Then hundreds of robotic troops from the Eggman Empire then start flying down/arrive/land on the battlefield, including Dr Eggman himself piloting the intimidating Egg Dragoon.

Eggman: "Get a load of THIS!"

The two armies stand off against each other until Bowser angrily orders his troops to charge at the enemy, with Eggman and his robots charging as well in response.

(Sorry if the bot gets some things wrong)