The SunBob ShimmerPants Movie is a spoof of the SpongeBob Squarepants Movie
Sunset Shimmer (MLP EG 1 & 2) as Spongebob
Twilight Sparkle as Patrick
Rarity as Squidward
Bowser as Plankton
The Boss (Dan. Vs) as Dennis
Yellow Kirby as Gary
Rocko the Wallaby as Goofy Goober Waiter
Terrifi-Guy as Cyclops
Jubileus the Creator as King Neptune
Elise (Dan vs.) as Mindy
Supergirl (Superman TAS) as David Hasselhoff
Various Ponies as Various Fish
Lucy Hale as Perch Perkins
Various Pokemon as Sea Animals who attack Cyclops