After Eggman creates the Egg-filtrator, he notices that it's quite late already and decides to leave the badnik plugged into the monitor that's displaying a variety of information regarding infiltration, spying and sabotage, however soon after Orbot and Cubot pass by, both cleaning and polishing the floors, not paying attention, they cross each other's path and slip, crashing into the Egg-filtrator and the monitor, they hastily try and fix things, but end up accidentally switching the monitor to TV mode, and the Egg-filtrator spends the night watching a marathon of pranks.
Come morning, Egg-filtrator enters test mode, and picks Metal Sonic 2.0, Orbot and Cubot as it's targets, by mixing certain chemicals and pouring them onto the tray Eggman's breakfast while polishing the floors, Orbot and Cubot slip, dropping the breakfast all over Eggman's face, the egg shaped villain panicking as his mustache starts to fall off.
With Eggman chasing off the robotics stooges away, Egg-filtrator then lowers the battery power of Metal Sonic 2.0 as he rests on his recharge station, followed by smudging his eyes, then overcharging his batteries so he wakes up and rushes around in a panic, eventually crashing through a wall, deciding that the opening is the signal that it has completed the tests, Egg-filtrator leaves as well, carrying a box of gear and chemicals for it's next pranks.
After a while of traveling, it arrives to Vanilla's house, where the Rabbit is hosting Mammoth Mogul and and Spice for dinner in an attempt to build some bridges with her daughter, getting by Cream and Cheese, who are playing in the garden by knocking down a beehive, forcing the duo to flee and jump into a nearby pond to escape being stung.
Entering the house, it quickly targets Mogul by preparing a stink bomb and a glue trap and sets them in the bathroom, once Mogul enters to wash his hands, the stink bomb goes off, the Mammoth stepping back and finding his foot stuck on the glue, struggling to set himself free to escape the smell, he accidentally destroys the toilet, some toilet paper getting stuck on his foot in the process, Vanilla arrives and seeing the wrecked toilet, the TP on his foot and the smell, well, it paints a very unflattering picture, Vanilla leaves to call a plumber as the bathroom starts to flood, a mortified Mogul chasing after her trying to explain he didn't destroy the toilet... Well he did but not how she thinks! A gleeful Egg-filtrator enters the kitchen for it's final prank.
Finding Spice, who has been voluntold to keep an eye on the pie as it bakes, the Egg-filtrator relies on its disguises to trick the rabbit into placing it near her by turning into a cookie jar, once she's distracted, it quickly ups the temperature of the oven, a panicking Spice being forced to get it out as it starts to burn, a well placed bit of soap on the floor sends her tripping, the pie flying off the window as it makes it's escape.
Finding it's way to a nearby city, it encounters Shard and Surge as they have taken a job pet sitting a pomeranian, oh yeah, it has a plan for this! But first to get rid of Shard, as he would definitely catch sight of the Egg-filtrator even through it's disguises.
Luckily, it catches sight of Metal Sonic 2.0 flying overhead, noting Soar the Eagle and his Walrus Camera man interviewing random people about something, it quickly trips over the Walrus, making him notice Shard and Surge, and Soar, being hungry for a good story, immediately drops his interviews to go bother them, leaving his van unprotected, approaching the news van, the Egg-filtrator hacks into a nearby billboard and projects an old video of Sonic it had downloaded from the Internet, the sound of Sonic's voice alerts Metal Sonic 2.0 into rampaging scaring away most people, Soar included, Shard leaves Surge with the pomeranian so she can keep it safe (they need the money!) as he goes to deal with the robo doppelganger.
As Surge carries away the now constantly barking dog, the Egg-filtrator reflects some light into her eyes, forcing her to drop the dog, which quickly rushes off towards a bowl of dog treats it had left for it, upon eating, the pomeranian quickly rushes off at high speeds, as the Egg-filtrator had laced it with sugar, the little dog zooms off in a sugar rush, being chased by Surge. Nodding at a job well done, the badnik goes off in search of it's next target, Sonic the Hedgehog.
Since there's no way it could catch the blue blur, the Egg-filtrator sets up it's biggest prank yet, as Shard chases Metal Sonic 2.0 off of the city, it sets up a giant soap bomb near a fountain and enters the post office.
Disguising itself as a package, Barry the Quokka, who is working there, carries him inside, where the Egg-filtrator quickly hacks into the computers, sending emails to everyone in the system, and likewise printing as many cards as possible and sending them to everyone as well.
Returning outside, it rushes back to the news van, this time it hacks every billboard it can find and sets up a fake advertising for a chili dog eating competition, with the price being a lifetime supply of the things.
Sonic arrives pretty quickly, and just in time for the soap bomb to go off, the hedgehog slipping and skidding onto a wall face first.
Then it changes the billboards to show a live replay of the event with the caption.
"Come get me!"
As Sonic peels himself off of the wall and stares in confusion (and some embarrassment) at the live feed, the sound of squealing and cheering starts approaching rapidly as a crowd of men, women, teenagers and even elderly people come from every direction, rushing straight for the hero, who panics and rushes off as best he can while running on soap, more and more people joining the mob as the Egg-filtrator gleefully dances in the background, fire hydrants letting out waters and spreading the soap further and further.
The emails and letters it had sent had been love message, telling all the receivers that if they could catch Sonic, he would go on a date with them, heck he would even handicap himself by filling the streets with soap so he couldn't run as fast!
As Sonic runs away from commitment, the Egg-filtrator returns home to Eggman's base, where the doctor, now wearing a fake mustache while he waits for his to regrow, laughs uproariously as the Egg-filtrator broadcasts it's escapades, the scientist lifts the badnik into the air, declaring it his greatest creation.
Which is when a huge boom sounds out and the whole base is covered in pink glitter, the game ending with Eggman's enraged screaming.