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Boomer Wario

Yes, things didn't turn out so well when the supposed "virus" struck. The WarioWare company, with its utter disregard for the health of the general population, has sent out putrid copies of "New Super Wario Bros. 2" but instead of generating wealth, it generated a lot of problems. People started getting greedy, obsessed about garlic and yellow hats, and really, really overweight.

As implied subtly from the title, thumbnails, and images combined, this humongous fat man goes over another humongous fat man. The difference? One is a disguting humongous fat man and the other is a Boomer. You have to be careful when approaching this monstrosity or else you may find yourself covered in two inches of slime and garlic.

You do not need sv_consistency 0 to run the game. Just start a game and don't worry about anything other than ugly greedy fat creatures.

If you get any issues with "bad texture", try rebooting the game. From my experience, the issue seems temporary and not related to my addon.

-A male Wario world model (from Mario Party 8)
-Wario's voice
-Female Wario (pink, mustacheless, nightmare fuel)
-Female Wario's voice, higher pitched than Wario's voice
-The music for the puked-on effect (factory music from Mario Sports Mix; if you want your own, make good use of GCFscape and compile it yourself)
-The music that plays when Wario is nearby (edited "Brooklyn" by Youngblood Brass Band)
-Wario's dead lower half
-Wario's arms and Wario UI (for Versus mode addicts)
-Wario's disgustingness preserved.

Enjoy my mod! Especially with those Mario mods listed below! Most of them are listed in gamemaps.com.

To download these mods from gamemaps, place the .vpk files into

common\Left 4 Dead 2\left4dead2\addons

or anything similar to that. You may need to unzip them first but do it carefully or else Wario puke may blind your vision.

Links
Check out links from Steam Workshop if you have a urge to hunt Mario enemies or are dying for a Left 4 Mario or something.
Mario (Ellis)
Mario (Ellis) - old
Luigi (Louis)
Smoker Mario
Smoker Mario (proportions)
Spitter Link
Spitter Waluigi
Special infected (I have no idea if this mod replaces voices)
Common infected (Koopas and Goombas; it's been reported that it replaces only the sounds, so use the gamemaps links provided below instead.)

Gamemaps files
Survivors
Mario (Ellis)[www.gamemaps.com] (my Ellis Mario in another site, just in case Steam Workshop is being the balls)
The OTHER Mario[www.gamemaps.com] (N64 Mario; over Ellis)
Luigi (Nick)[www.gamemaps.com] (Super Smash Bros. Brawl Luigi)
Waluigi (Coach)[www.gamemaps.com] (ditto game as Luigi)

Common Infected
Koopas and Goombas[www.gamemaps.com]
Koopas and Goombas (voices)[www.gamemaps.com]

Special Infected
Yoshi Smoker[www.gamemaps.com]
Yoshi Smoker (voices)[www.gamemaps.com]
Peach Witch[www.gamemaps.com]
Peach Witch (voices)[www.gamemaps.com]
Diddy Kong Jockey[www.gamemaps.com]
Diddy Kong Jockey (voices)[www.gamemaps.com]
Donkey Kong tank[www.gamemaps.com]
Donkey Kong tank (voices)[www.gamemaps.com]
Mario Smoker

Take note that the Special Infected mod in workshop may collide with Diddy Kong and Donkey Kong.

Map
Left 4 Mario Custom Campaign[www.gamemaps.com]

Created by the identical twin sisters: LeftyGreenMario and BabyLuigiOnFire.

BabyLuigiOnFire did the rigging and while I compiled the models and did the female Wario texture.