Waluigi

Waluigi was deliberately created to be a selectable character in various multiplayer games. He has appeared in several games, although none of them are main games in the Mario series. His first appearance was in Mario Tennis for the Nintendo 64, as Wario's doubles partner. Later, along with Princess Daisy, he joined the Mario Party series's roster in Mario Party 3 and has been a playable character in every main entry in the series since.

Waluigi is the brains compared to Wario. Waluigi was first personified as a dark, sinister character in Mario Tennis, where his only sounds were horrid moans and laughter, his back was somewhat hunched, and when he won he'd have purple, glowing eyes. A year later, he appeared as a playable character in Mario Party 3. He wasn't playable in Story Mode, where he only appeared to challenge the player to a duel match. He also had his own board full of explosives. Recently, he has been portrayed more as a comic relief.

In Paper Mario: The Thousand-Year Door, there are two Badges that Mario can wear to change his appearance. One of them is the L Emblem, which puts Mario in Luigi's clothes, and the other is the W Emblem, which puts him in Wario's clothes. When Mario puts on the W Emblem and the L Emblem at the same time, he changes into Waluigi's clothes.

Waluigi plays his first role in a game plot in Dance Dance Revolution: Mario Mix, in which he is one of the characters, along with Bowser, attempting to wreak havoc on the Mushroom Kingdom's music.

He is again a playable character in the Mario Kart Series, appearing at the start in Mario Kart: Double Dash!! and as an unlockable character in Mario Kart DS.

Appearance
Waluigi has a hat and gloves with a Î“ symbol. Mario's evil counterpart, Wario, wears a "W", which is also an upside-down "M". Likewise, Waluigi is noted as Luigi's evil counterpart, and this is most likely the reason that he wears a "Î“". Nintendo used the vertical mirror image of the "L".

Name
Waluigi's name has a dual-meaning in Japanese. The Japanese word "warui" (æ‚ªã„, "warui"?) means "bad" or "evil" ("Warui" is also a condescending way of apologizing, as opposed to "gomennasai", or "sumimasen" which are more polite). This means that Waluigi's name is a portmanteau of "warui" and "Luigi" and essentially means "Evil Luigi". Many believe his name to be a cheap offshoot of Wario's name rather than being derived from Luigi's name.

Additionally, the name Waluigi would be pronounced in Japanese as waruiji, which rearranges the syllables of ijiwaru, the Japanese word for "mean-spirited".

Note that in Japanese, the same sound is used for L and R.

Criticism
Waluigi is disliked by Nintendo fans due to the lack of originality behind his creation and his clunky name. He is also disliked because of his role in the Mario universe as a "filler" character â€“ that is, a character who serves as a partner to a previously established character or as an extra player in games like the Mario Party or Mario Kart series.

Relationship to Wario
Waluigi's relationship to Wario is unclear. It appears that they might be related since they share some facial and mental characteristics, but Waluigi's Super Smash Bros. Melee trophy says that it is indeed unclear if they are brothers or not. It can be inferred that they are at least good friends.

However, according to Nintendo of Europe, Waluigi and Wario are brothers. Nintendo of Europe's "Wario's Warehouse" articles from a few years ago had Wario referred to Waluigi as "his dimwit brother." Nintendo of Europe's Mario Kart DS site has a description of the Waluigi Pinball course that refers to Waluigi as Wario's younger brother.

Nintendo of America also mentioned Waluigi and Wario's brotherhood. Nintendo of America's old Mario Tennis  Page says Wario and Waluigi are indeed brothers. Also, Wario and Waluigi's team name in Mario Party 5 - the "Wicked Bros." - also implies that they are brothers, however, putting Luigi and Yoshi on a team makes the team name the "Green Bros."

Although, Nintendo adopted the use of the name "Mario" as a double for the characters' last name from the movies to make sense for why Luigi is a "Mario Brother." It is unclear if the same can be said for Wario & Waluigi, meaning they could also bear the Mario last name or even be "Wario Bros." or maybe even something else. The term "Wicked Bros." shouldn't be taken seriously at this time as their official last name, but more so as their personalities.

Mario Superstar Baseball Bio
"Luigi's eccentric rival. Waluigi is a hardworking player who has been training night and day to gain enough power to best Luigi. The eggplant that his Liar Ball delivers is said to have the power to make those who touch it lose their lunches."