The series started on May 2013 and has only six episodes. While the series generally progresses as a rate of two videos by year, there has been new episode since May 2016.
- The Welcome Invitation (May 19th, 2013)
- Wario's Treasure Hunting Time (September 8th, 2013)
- The Winning Ticket. (April 27th, 2014)
- Money Mayhem (September 22nd, 2014)
- Golfing for Gold (April 19th, 2015)
- Waluigi Origins (May 8, 2016)
Beginning on August 30, 2017, the Wacky Wario Bros began to appear on TheAwesomeMario, albeit as short, two-minute videos. So far, there are only three episodes.
- Wacky Wario Bros Shorts: THE HEIST (August 30, 2017)
- Wacky Wario Bros Shorts: The 8 Red Coins (September 27, 2017)
- Wacky Wario Bros: The Christmas Heist (December 24, 2017)
- According to the title of the series, Wario and Waluigi are brothers in SMG4's canonity. It's unknown if they're really brothers in the real Mario series of Nintendo because there are a lot of different sources about their relationship.
- According to Charles Martinet (voice actor for Mario, Luigi, Wario and Waluigi), Wario and Waluigi are "two nice, evil guys who found each other". Other sources also state that they are cousins, siblings, or simply stating that the relationship is unclear. In Mario Super Sluggers, however, Wario has called Waluigi his “traitor friend”.
- The Wario Bros. rarely have subtitle lines in this series.
- This series has started to appear on TheAwesomeMario.