Sonic the Hedgehog

Sonic is a former villain in Duchess' series but now redeemed. Used to be SpongeBob's main enemy but now replaced with Goku, nowadays he and SpongeBob are good friends.

Rivalry with SpongeBob
Sonic is another rival that is a challenger for SpongeBob and then stated to SpongeBob that he's the fastest thing alive, with Tails telling Sonic he's going to regret this. SpongeBob then made fun of Sonic for a lot of things like his super Sonic form and his bad games, Sonic keeps telling SpongeBob to stop making fun of him and then used 75% of his power to finish Sonic off.

End of Rivalry
It is unknown how their rivalry ended but out of nowhere, SpongeBob and Sonic seems to be in good terms. They hang out now like having chilli dogs and krabby patties. They are also now working together to finish off The Barney Bunch.

Likes

 * SpongeBob (currently)
 * Tails
 * Amy
 * Knuckles
 * Cream
 * Meggy Spletzer
 * Chilli Dogs
 * Video Games
 * SEGA
 * Genesis
 * SMG4
 * Mario (despite hating Nintendo)

Dislikes

 * Nintendo
 * The Barney Bunch
 * Game Critics
 * Goku
 * SpongeBob (formerly)