SpongeBob Reveal Trailer!:
- We see Mario and Duck Hunt walking around quietly
- 1 day Later time card shows
- We see SpongeBob giving Patrick the last of his socks
- SpongeBob: Here you go Patrick!
- Patrick: Thanks Buddy! Hey some weird hand thing told me to give this to you (its a smash invitation)
- SpongeBob reads the smash invite
- SpongeBob accepts the invite
- Splash screen says!: SpongeBob Is Ready For Another Best Day Ever!
Patrick reveal trailer!:
- We see Mario and Pikachu
- A throw fruit is thrown
- Mario and Pikachu get distracted
- A second throw fruit is thrown which hits them
- Patrick is seen
- Splash Screen Says!: Patrick Spins In!
Squidward Reveal Trailer!:
- SpongeBob and Patrick jellyfish in Jellyfish Fields (the exclusive SpongeBob Stage)
- Squidward is seen playing his clarinet
- SpongeBob uses his side tilt
- Patrick uses side special (Throw Fruit)
- Squidward uses his down special (Ink) which KOs SpongeBob and Patrick
- Splash Screen Says!: Squidward Inks Into Battle!
Classic Mode Story Routes:
SpongeBob (Best Day Ever):
Horde Battle (Min Min) (Teammate: Pink Kirby)
Mii Brawler
SpongeBob (Teammate: Gray Min Min Mii Brawler Pink Kirby and And Pink Wario)
SpongeBob
Green Donkey Kong and Blue R.O.B.
Bonus Stage
Master Hand
Patrick (The Nitwitted Starfish Begins Jellyfishing for A Battle!):
Mario (Teammate: SpongeBob)
Ridley (Teammate: SpongeBob)
Donkey Kong (Teammate: SpongeBob)
Steve (Teammate: SpongeBob)
Bonus Stage
Master Hand And Crazy Hand (Teammate: SpongeBob)
Squidward (Squid's Day Off Continues!):
Mario
Mr. Game And Watch
Greninja
Steve
Bonus Stage
SpongeBob And Patrick