Mario

Mario is the leading protagonist of the Mario series as well as the mascot to Nintendo and the most recognizable video game character of all time. He is an Italian Plumber who resides in the Mushroom Kindgom where he is known as a hero and protector.

Super Mario World 2: Yoshi's Island
The events of Mario's birth by him and his slightly younger brother Luigi being delivered to their parents by the Stork. Kamek foresees that the two children will interfere with the Koopa Troop's plan of world domination in the future and attacks the stork to kidnap the kids to prevent them from stopping them in the future but Mario ended up landing on Yoshi's Island instead where the local inhabitants known as the Yoshi helped Mario rescue his brother and defeated Kamek and his master the young baby Bowser.

Donkey Kong
After growing up in New Donk City in the Metro Kingdom, Mario became a carpenter and had a girlfriend named Pauline who was one day kidnapped by Donkey Kong who had taken her to the top of a construction site. After Donkey Kong threw various Barrels down at Mario who jumped over all of them, he saved Pauline and captured Donkey Kong.

Donkey Kong Jr.
Mario who know had Donkey Kong captive, fought against his son Donkey Kong Jr. by trying to prevent him from getting to his dad. Mario ended up failing and the big ape was released and both Donkey Kong and his son got away.

Mario Bros.
Both Mario and his brother Luigi became plumbers and started the Mario Brothers Plumbing company. One of their jobs was cleaning out a sewer of many strange creatures that were coming out of them.

Super Mario Bros.
After cleaning out the sewers of the strange creatures, Mario and Luigi ended up finding a pipe that lead them into a different world. They made there way into the Mushroom Kingdom during the time it was being taken over by Bowser who had kidnapped Princess Peach and had the Mushroom Retainers taken in different fortresses in the kingdom. Mario and Luigi ended up saving them after defeating Bowser and restoring the land. At this point Mario and Luigi decided to stay in the Mushroom Kingdom as they were considered heroes there.