Its more and more rare in more recent seasons to feature only Spongebob and ONE other main character (minors don't count). Spongebob has shared the spotlight with some characters (exclusively) more than others. A few examples:
Only Features Spongebob and Patrick: I'm Your Biggest Fanatic,MM&BB 3, Donut of Shame, Sandcastles in the Sand
Only Features Spongebob and Squidward: Choir Boys, Reef Blower, Keep Bikini Bottom Beautiful
Only Features Spongebob and Mr. Krabs: The Krusty Plate (only known occurrence in my memory)
Only Features Spongebob and Sandy: Ripped Pants (only known occurrence in my memory)
Only Features Spongebob and Plankton: Walking Small (only known occurrence in my memory)
Only Features Spongebob and Gary: Gary in Love
Mrs. Puff interestingly has a lot of episodes where it's just her and Spongebob, for obvious reasons.
What are your favorite 'One on One' episodes? I'm a sucker for Walking Small and Sandcastles in the Sand
Only Features Spongebob and Patrick: I'm Your Biggest Fanatic,MM&BB 3, Donut of Shame, Sandcastles in the Sand
Only Features Spongebob and Squidward: Choir Boys, Reef Blower, Keep Bikini Bottom Beautiful
Only Features Spongebob and Mr. Krabs: The Krusty Plate (only known occurrence in my memory)
Only Features Spongebob and Sandy: Ripped Pants (only known occurrence in my memory)
Only Features Spongebob and Plankton: Walking Small (only known occurrence in my memory)
Only Features Spongebob and Gary: Gary in Love
Mrs. Puff interestingly has a lot of episodes where it's just her and Spongebob, for obvious reasons.
What are your favorite 'One on One' episodes? I'm a sucker for Walking Small and Sandcastles in the Sand