The Mario Bros., Princess Toadstool, and Toad protect the Mushroom Kingdom against the evil forces of Bowser and his seven Koopa Kids.
| Title | Time | |
|---|---|---|
| 1 | Sneaky Lying Cheating Giant Ninja Koopas | 1990-09-08 |
| 2 | Reptiles in the Rose Garden | 1990-09-08 |
| 3 | Mind Your Mummy Mommy, Mario | 1990-09-15 |
| 4 | The Beauty of Kootie | 1990-09-15 |
| 5 | Princess Toadstool for President | 1990-09-22 |
| 6 | Never Koop a Koopa | 1990-09-22 |
| 7 | Reign Storm | 1990-09-29 |
| 8 | Toddler Terrors of Time Travel | 1990-09-29 |
| 9 | Dadzilla | 1990-10-06 |
| 10 | Tag Team Trouble | 1990-10-06 |
| 11 | Oh, Brother! | 1990-10-13 |
| 12 | Misadventure of Mighty Plumber | 1990-10-13 |
| 13 | A Toadally Magical Adventure | 1990-10-20 |
| 14 | Misadventures in Babysitting | 1990-10-20 |
| 15 | Do the Koopa | 1990-10-27 |
| 16 | Kootie Pie Rocks | 1990-10-27 |
| 17 | Mush-Rumors | 1990-11-03 |
| 18 | The Ugly Mermaid | 1990-11-03 |
| 19 | Crimes R Us | 1990-11-10 |
| 20 | Life's Ruff | 1990-11-10 |
| 21 | Up, Up, and a Koopa | 1990-11-17 |
| 22 | 7 Continents for 7 Koopas | 1990-11-17 |
| 23 | True Colors | 1990-11-24 |
| 24 | Recycled Koopa | 1990-11-24 |
| 25 | The Venice Menace | 1990-12-01 |
| 26 | Super Koopa | 1990-12-01 |
