The End Of SpongeToons.

The End Of SpongeToons is the fifty - fourth episode and the last episode of SpongeToons and the eighteenth episode of Season Three.

Plot
It is the Ghastlyop's final journey — but his psychotic nemesis, SuperFanon, has challenged Ghastly on the eve of Halloween! Each determined to cheat death, the battle rages from the abandoned wastelands of London to the mysterious Space Needle, whilst the alien The Doctor warns Ghastlyop of an even greater danger approaching. An ancient trap closing around the Earth, Ghastly, SpongeBob and Patrick must fight alone. Sacrifices must be made, and the deadly prophecy warns: "He will knock four times.".

Transcript
COMING SOON

Triva
This is the longest ever SpongeToons episode beating the 50th episode by 15 minutes! (That's including the intros, without them it's 12 minutes)

The episode is based on the video game, SpongeToons: The Video Game.