Waluigi 
  
Mario Games he has been in: 
-  Mario Tennis-Waluigi's FIRST apparence!  Just another tennis player to pick from.
 -  Mario Party 3-I havn't played this game personally nyself, but apparently he's a character in it.
 
Mario Games he COULD of been in: 
-  Wario Land-Hey, He's Wario's brother.  Where is he?  Wait, he wasn't invented yet.
 -  Wario Land 2-See Wario Land
 -  Wario Land 3-See Wario Land 2
 -  Super Mario 64-Well, if Luigi wasn't in this game, maybe Waluigi should have been in it instead.
 -   Luigi's Mansion-I guess we don't really know if he's in this game or not...I'm guessing he's not.
 
Stories that need to be told:  
-   The name-Whats the deal with the name Waluigi?  Doesn't Nintendo know how lame it sounds?
 -   When the heck did Wario get a brother???
 -   Mario Bros. VS Wario Bros.-This match is overdue.
 
Forgotten Heroism:  
-   Um...well...lets see...he...um...Dang, Waluigi hasn't done anything, has he?  Talk about neglected.  All he's done is play some tennis and play some goofy games in a party.  There isn't much heroism in that.
 
Why People Like Waluigi: 
-   The name-I ask again, whats the deal with the name Waluigi???
 -   The evilness-Wario is Mario's evil twin and Waluigi is Luigi's evil twin.  Nice and simple.
 -   The colors-Crazy, man.  He looks like a tall Wario...Which I guess was the point.
 -   The "L"-His symbol is a backwards "L"!  How crazy is that???