The story of Mario vs. Wario begins with Wario sends Mario a letter, claiming that he wants to invite Mario to a party as a reunion since their childhood. However, Wario has actually prepared a trap for Mario, wanting to get revenge on him for Mario constantly "bullying" Wario in their youth; Wario especially hated playing cowboys with Mario, as he was always the rustler who was captured by "Sheriff Mario" and locked away. 
As Mario makes his way to Wario's fortress, he inadvertently defeats all of Wario's minions, oblivious to their hostility towards him. Meanwhile, an angered Wario watches Mario. Eventually, Mario reaches Wario's home and is confronted by a giant-sized Wario. As Wario begins trying to pummel him, Mario notices a plug on him and pulls it, deflating Wario's giant costume and returning him to his normal size.
After listening to Wario calling him a bully, Mario says that he didn't mean to "bully" Wario 20 years ago and apologizes. Wario, after hearing this apology, turns over a new leaf. Unfortunately for Wario, Mario suddenly pulls out a cowboy costume and starts playing cowboys with Wario, with Mario as the sheriff once again. Shocked about this, Wario vows that he will have his revenge on Mario.
Wario in Mario vs. Wario: The Birthday Bash
Wario also appeared in a second Mario vs. Wario comic, Mario vs. Wario: The Birthday Bash, in which he receives an invitation to Princess Toadstool's birthday party. Wanting to get the Princess the perfect gift, Wario rushes off to buy her a Samus Doll, which he remembers that she wants.
When Wario arrives at the store, he learns from the Koopa Troopa shopkeeper that a man with a "big black mustache" had already bought the doll. An enraged Wario believes Mario to have been the one who bought the doll, and begins to leave until he notices a nearby creepy jack-in-the-box. Grabbing the jack-in-the-box, Wario pays for it and wraps it.
Later on, while at Princess Toadstool's party, Wario makes several unsuccessful attempts to switch the jack-in-the-box with Mario's present. After a lot of effort, Wario does so, only to be shocked when the Princess opens his present and the sinister jack-in-the-box pops out. As the Princess throws the jack-in-the-box away in horror, Wario accuses Mario of setting him up and starts fighting with him.
During this scuffle, it is revealed that Mario's present is also a creepy jack-in-the-box, and both Mario and Wario can only look on in surprise and dismay as Luigi gives his present to the Princess, the Samus Doll.
As Mario makes his way to Wario's fortress, he inadvertently defeats all of Wario's minions, oblivious to their hostility towards him. Meanwhile, an angered Wario watches Mario. Eventually, Mario reaches Wario's home and is confronted by a giant-sized Wario. As Wario begins trying to pummel him, Mario notices a plug on him and pulls it, deflating Wario's giant costume and returning him to his normal size.
After listening to Wario calling him a bully, Mario says that he didn't mean to "bully" Wario 20 years ago and apologizes. Wario, after hearing this apology, turns over a new leaf. Unfortunately for Wario, Mario suddenly pulls out a cowboy costume and starts playing cowboys with Wario, with Mario as the sheriff once again. Shocked about this, Wario vows that he will have his revenge on Mario.
Wario in Mario vs. Wario: The Birthday Bash
Wario also appeared in a second Mario vs. Wario comic, Mario vs. Wario: The Birthday Bash, in which he receives an invitation to Princess Toadstool's birthday party. Wanting to get the Princess the perfect gift, Wario rushes off to buy her a Samus Doll, which he remembers that she wants.
When Wario arrives at the store, he learns from the Koopa Troopa shopkeeper that a man with a "big black mustache" had already bought the doll. An enraged Wario believes Mario to have been the one who bought the doll, and begins to leave until he notices a nearby creepy jack-in-the-box. Grabbing the jack-in-the-box, Wario pays for it and wraps it.
Later on, while at Princess Toadstool's party, Wario makes several unsuccessful attempts to switch the jack-in-the-box with Mario's present. After a lot of effort, Wario does so, only to be shocked when the Princess opens his present and the sinister jack-in-the-box pops out. As the Princess throws the jack-in-the-box away in horror, Wario accuses Mario of setting him up and starts fighting with him.
During this scuffle, it is revealed that Mario's present is also a creepy jack-in-the-box, and both Mario and Wario can only look on in surprise and dismay as Luigi gives his present to the Princess, the Samus Doll.
