Toad's Adventure (キノピオアドベンチャー) is a Series incredibly similar to SuperSpy Luigi. It stars Toad from the Mario Series going on a long expidition. When SuperSpy Luigi was introduced, the Writer stopped working on Toad's Adventure. References to it and characters in it are still in the new series.
Plot:Toad must save a Planet entirely inhabited by the same speices as him from his evil Father and Bowser with his friends Mario, Luigi, Peach, Yoshi, Kirby, Meta Knight, Toadette, and Koopa. The group is sent back to the Mushroom Kingdom and must find a way back into Mario's Galaxy and save Planet Toad.