Happy Birthday Eugene Krabs and Sheldon J. Plankton!

[Cha]

I need a "Krabs-and-Plankton-are-actually-twins" theory

Well we've never seen Plankton's mom or Mr. Krabs' dad before so.

:naughty:

 

[BobCarotte]

Happy belated birthday, Plankton!

 

[Fred Mercury]

Happy Birthday, Money Lover and Fail Evil Man!

 

[The Appetizer]

Happy birthday, Plankton. And as a present, here's the secret formula to the Krabby Patty:
five gallons combustable oil
one sack of coral dust (extra spicy!)
one bucket of fire algae paste
and disulphide

Spoiler

Nice try, Plankton!
-Eugene

 

[Land Sponge]

https://www.youtube.com/watch?v=0gi-RYNhP8Y