Episodes Season 1
1. mermaid man begins aired August 7th, 1999
2. The dark bubble aired August 19th, 1999
3. man ray!!! aired September 12th, 1999
4. Crazy fans aired September 22nd, 1999
5. The dark bubble returns aired October 14th, 1999
6. Squidward joins aired October 31st, 1999
7. the rise of evil part 1 aired November 17th, 1999
8. the rise of evil part 2 aired November 29th, 1999
9. Man rays revenge aired December 20th, 1999
10. Squidward gets fired aired December 30th, 1999
11. the final battle part 1 aired January 9th, 2000
12. the final battle part 2 aired January 20th, 2000
Episodes Season 2
- Mermaid man returns Aired December 1st, 2000
2. Evil!!!!!! Aired December 20th, 2000
3. Man rays son aired January 2nd, 2001
4. Squidward tries to join again aired January 31st, 2001
5. Dark bubbles plan aired February 27th, 2001
6. Squidward begs aired March 4th, 2001
7. Mermaid mans evil son aired March 29th, 2001
8. Squidward joins again aired April 20th, 2001
9. mermaid man's son rises part 1 aired June 24th, 2001
10. mermaid man's son rises part 2 aired June 27th, 2001
11. final battle again!!!! aired July 22nd, 2001
12. galactic war aired August 7th, 2001
Season 3
- After War aired May 4th,2002
- Squidward's Homicide May 20th,2002
- RIP June 1st, 2002
- Mermaid Man's Revenge June 8th, 2002
- Squidward's Freedom July 1st, 2002
- Hotel War July 10th, 2002
- Squidward Returns July 24th, 2002
- Squidward Goes Mentally Insane August 4th, 2002
- Squidward's Day of retribution Part 1 August 20th, 2002
- Squidward's Day of Retribution Part 2 September 4th, 2002
- Squidward VS Mermaidman part 1 September 20th, 2002
- Squidward vs Mermaidman Part 2 October 16th, 2002