Mario and the Tugs(DIC cartoons)

Mario and the Tugs is a 13 Episode crossover series when Mario Luigi the Princess and Toad are swimming then out of nowhare the doom ship arrived. King Koopa and the Koopa kids are prepared to attack Mario and his friends escape through a warp pipe but instead of taking them to another location it takes them to 1920s United States. The warp pipe comes out of the ocean but they are saved by a 2 small tugboats Sunshine and Ten Cents. The 2 Tugs take them to Bigg city port where Ten Cents tells Mario about the star fleet Captain Star the owner of the Star fleet allows Mario and his friends to stay at his place but King Koopa and his Kids arrive and get help from Captain Zero and his Tugs the Z-stacks.

episodes
trying to run away from king koopas doomship Mario Luigi Princess Toadstole and Toad jump into a warp pipe that lead them to bigg city port King Koopa makes a small submarine Kooky and Bully have an idea they spot Hurcules the largest and strongest tug in the star fleet who just got done bringing the S.S. Vienna into the port but then Kooky and Bully drive into him and push him out of the port and far off the coast the sub was stronger then him he eventully he freed himself but he ran aground and was stuck on a reef the star tugs and the Mario brothers go out to save him But King Koopa the Koopa kids and the Z-stacks wont let them captain Star is sick so Princess Toadstole volunteers to take over for the rest of the day but trouble happens when the doomship arrived King Koopa has captured the Star tugs and will only let them go if she were to come with him but then Big Mac escapes and warns Mario Luigi and Toad is doing his as a railway tug he then tells Frank and Eddie the railway barges start mocking him about his snobby behavor he tells them to shut up later that day when he is leaving Zorran the leader of the Z-stacks and forces him to come with him Captain Zero and King Koopa had an idea to steal one of Star fleet tugs and uses his wand to turn him into a Z-stacks
 * one Bigg problem
 * stuck
 * captain Toadstole
 * a new Z-stack

Trivia

 * the Crossover only aired in the UK since Tugs only aired in the UK