Oh, how rude of me. Allow me to introduce.... Me-Positive and Me-Negative!!
~ Bannister introducing his robots to the agents.

Me-Positive and Me-Negative are supporting antagonists of the Phineas and Ferb episode Sidetracked. They are two magnetic robots built by Professor Bannister to take on his enemies.


During the episode's climax, Bannister was confronted by his nemesis Lyla Lolliberry and her partner Perry the Platypus on his helicopter, where he reveals his plot to steal Canada's symbol of national unity (Albert the Moose) to sink Canada's national pride to a new low and allow him to annex Canada to Greenland and put in a new national anthem in order to reinvigorate its national pride to a peak. He even got Heinz Doofenshmirtz to assist him in his scheme as part of their U.S.-Canadian evil scheme exchange program, though Doof finds Bannister's scheme to be quite complicated in general.

Anticipating that he would be confronted in person, Bannister reveals his new creations known as Me-Positive and Me-Negative to the agents, revealing that he got the parts from several thugs (who stole the parts from a warehouse in Seattle earlier in the episode) to create the robots. Feeling that his plan is at its peak, Bannister happily set his two robots to fight the agents. At first, the robots had the upper hand, but Perry tricks Me-Negative into chasing him onto the top of the chopper while Lyla stands her ground against Me-Positive inside the chopper. Lyla then lures Me-Positive into the ceiling, where its magnetic field clings onto that of Me-Negative, trapping the two robots on the chopper's hull. Horrified by this turn of events, Bannister attempts to escape via parachute, only to be caught by Peter the Panda (whom Perry called for backup).

It is unknown what happened to the androids following the arrest of Bannister and his thugs, though it may be presumed that were deactivated afterwards.



           Phineas and Ferb Villains

Doofenshmirtz Evil Incorporated
Heinz Doofenshmirtz | Vanessa Doofenshmirtz | Norm | Gelatin Monster | Doofenshmirtz's Mecha | Rodrigo | Mindless Repulsive Pharmacists

Aloyse Von Roddenstein | Dr. Bloodpudding | Dr. Diminutive | Professor Bannister | Bannister's Thugs | Me-Positive & Me-Negative | Dr. Killbot | Warehouse Goons

Doofenshmirtz Family (2nd Dimension)
Heinz Doofenshmirtz (2nd Dimension) | Charlene Doofenshmirtz (2nd Dimension) | Vanessa Doofenshmirtz (2nd Dimension) | Norm Bots | Goozim | Animal-Borgs (Perry the Platyborg, Peter the Pandaborg & Pinky the Chihuahuaborg) | Tony Marzulo

Other Evil Scientists
Professor Destructicon | Dr. Gevaarlijk | Mitch | The Regurgitator | Esmeralda Poofenplotz | Khaka Peü Peü | Evil Carl (Evil Flynn-Fletcher Robots) | Mittington Random (The Klimpalooners) | Professor Mystery | Professor Parenthesis (Mecha-Fleas)

Red Skull | MODOK | Whiplash | Venom | Darthenshmirtz | Darth Ferb | Candace's C.O. | Norm-3PO | Stormtrooper Candace | Stormtrooper Baljeet | Stormtrooper Buford | Pistachions (King Pistachion & Derek)

Time Shift
Jekyll Doofenshmirtz | Doofengung | Doofus Khan | Doofenshmirtz (1914) | Corn Colossus of Juatchadoon | Norm (1914) | Professor Von Doofenshmirtz | Pneumatic Pnorman

Fictional Characters
Control Freak | Smile Away Reformatory School Sergeant | Giant Buford | Malifishmertz | Meatlings | Lawn Gnorme | Keeper of the Bridge of Comprehension | Candace's Id | Worthington Dubois | Professor Nibbles | Der Kinderlumper

Brobots | Suzy Johnson | Dennis the Rabbit | Busting Candace | Potato Gremlins | Liam McCracken | Morg | Peggy McGee | Victor Verliezer